From 0a8459693238a339de9705da4e26f6ffbb6a4ebc Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 22 Aug 2019 11:06:43 +0200 Subject: [PATCH 001/210] fbdev: drop res_id parameter from remove_conflicting_pci_framebuffers Since commit b0e999c95581 ("fbdev: list all pci memory bars as conflicting apertures") the parameter was used for some sanity checks only, to make sure we detect any issues with the new approach to just list all memory bars as apertures. No issues turned up so far, so continue to cleanup: Drop the res_id parameter, drop the sanity checks. Also downgrade the logging from "info" level to "debug" level and update documentation. Signed-off-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20190822090645.25410-2-kraxel@redhat.com --- drivers/video/fbdev/core/fbmem.c | 17 +++++------------ include/drm/drm_fb_helper.h | 2 +- include/linux/fb.h | 2 +- 3 files changed, 7 insertions(+), 14 deletions(-) diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index e6a1c805064f..95c32952fa8a 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1758,21 +1758,19 @@ EXPORT_SYMBOL(remove_conflicting_framebuffers); /** * remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices * @pdev: PCI device - * @res_id: index of PCI BAR configuring framebuffer memory * @name: requesting driver name * * This function removes framebuffer devices (eg. initialized by firmware) - * using memory range configured for @pdev's BAR @res_id. + * using memory range configured for any of @pdev's memory bars. * * The function assumes that PCI device with shadowed ROM drives a primary * display and so kicks out vga16fb. */ -int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const char *name) +int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name) { struct apertures_struct *ap; bool primary = false; int err, idx, bar; - bool res_id_found = false; for (idx = 0, bar = 0; bar < PCI_ROM_RESOURCE; bar++) { if (!(pci_resource_flags(pdev, bar) & IORESOURCE_MEM)) @@ -1789,16 +1787,11 @@ int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, const continue; ap->ranges[idx].base = pci_resource_start(pdev, bar); ap->ranges[idx].size = pci_resource_len(pdev, bar); - pci_info(pdev, "%s: bar %d: 0x%lx -> 0x%lx\n", __func__, bar, - (unsigned long)pci_resource_start(pdev, bar), - (unsigned long)pci_resource_end(pdev, bar)); + pci_dbg(pdev, "%s: bar %d: 0x%lx -> 0x%lx\n", __func__, bar, + (unsigned long)pci_resource_start(pdev, bar), + (unsigned long)pci_resource_end(pdev, bar)); idx++; - if (res_id == bar) - res_id_found = true; } - if (!res_id_found) - pci_warn(pdev, "%s: passed res_id (%d) is not a memory bar\n", - __func__, res_id); #ifdef CONFIG_X86 primary = pdev->resource[PCI_ROM_RESOURCE].flags & diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index c8a8ae2a678a..5a5f4b1d8241 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -560,7 +560,7 @@ drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, * otherwise the vga fbdev driver falls over. */ #if IS_REACHABLE(CONFIG_FB) - ret = remove_conflicting_pci_framebuffers(pdev, resource_id, name); + ret = remove_conflicting_pci_framebuffers(pdev, name); #endif if (ret == 0) ret = vga_remove_vgacon(pdev); diff --git a/include/linux/fb.h b/include/linux/fb.h index 756706b666a1..41e0069eca0a 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -607,7 +607,7 @@ extern ssize_t fb_sys_write(struct fb_info *info, const char __user *buf, extern int register_framebuffer(struct fb_info *fb_info); extern void unregister_framebuffer(struct fb_info *fb_info); extern void unlink_framebuffer(struct fb_info *fb_info); -extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, int res_id, +extern int remove_conflicting_pci_framebuffers(struct pci_dev *pdev, const char *name); extern int remove_conflicting_framebuffers(struct apertures_struct *a, const char *name, bool primary); From 35616a4aa919e91c4e530e7e6106e32d0ceb85c2 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 22 Aug 2019 11:06:44 +0200 Subject: [PATCH 002/210] drm: drop resource_id parameter from drm_fb_helper_remove_conflicting_pci_framebuffers Not needed any more for remove_conflicting_pci_framebuffers calls. Signed-off-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20190822090645.25410-3-kraxel@redhat.com --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 2 +- drivers/gpu/drm/bochs/bochs_drv.c | 2 +- drivers/gpu/drm/cirrus/cirrus.c | 2 +- drivers/gpu/drm/mgag200/mgag200_drv.c | 2 +- drivers/gpu/drm/qxl/qxl_drv.c | 2 +- drivers/gpu/drm/radeon/radeon_drv.c | 2 +- drivers/gpu/drm/virtio/virtgpu_drv.c | 1 - include/drm/drm_fb_helper.h | 4 +--- 8 files changed, 7 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 98df55534a6d..6b96a5738e57 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -1031,7 +1031,7 @@ static int amdgpu_pci_probe(struct pci_dev *pdev, } /* Get rid of things like offb */ - ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "amdgpudrmfb"); + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "amdgpudrmfb"); if (ret) return ret; diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c index 770e1625d05e..3b9b0d9bbc14 100644 --- a/drivers/gpu/drm/bochs/bochs_drv.c +++ b/drivers/gpu/drm/bochs/bochs_drv.c @@ -114,7 +114,7 @@ static int bochs_pci_probe(struct pci_dev *pdev, return -ENOMEM; } - ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "bochsdrmfb"); + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "bochsdrmfb"); if (ret) return ret; diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c index 36a69aec8a4b..89d9e6fdeb8c 100644 --- a/drivers/gpu/drm/cirrus/cirrus.c +++ b/drivers/gpu/drm/cirrus/cirrus.c @@ -532,7 +532,7 @@ static int cirrus_pci_probe(struct pci_dev *pdev, struct cirrus_device *cirrus; int ret; - ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "cirrusdrmfb"); + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "cirrusdrmfb"); if (ret) return ret; diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.c b/drivers/gpu/drm/mgag200/mgag200_drv.c index afd9119b6cf1..4f9df3b93598 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.c +++ b/drivers/gpu/drm/mgag200/mgag200_drv.c @@ -46,7 +46,7 @@ MODULE_DEVICE_TABLE(pci, pciidlist); static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { - drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "mgag200drmfb"); + drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "mgag200drmfb"); return drm_get_pci_dev(pdev, ent, &driver); } diff --git a/drivers/gpu/drm/qxl/qxl_drv.c b/drivers/gpu/drm/qxl/qxl_drv.c index c1802e01d9f6..2b726a51a302 100644 --- a/drivers/gpu/drm/qxl/qxl_drv.c +++ b/drivers/gpu/drm/qxl/qxl_drv.c @@ -83,7 +83,7 @@ qxl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (ret) goto free_dev; - ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "qxl"); + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "qxl"); if (ret) goto disable_pci; diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index a4a78dfdef37..624aa580d418 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -329,7 +329,7 @@ static int radeon_pci_probe(struct pci_dev *pdev, return -EPROBE_DEFER; /* Get rid of things like offb */ - ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, 0, "radeondrmfb"); + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "radeondrmfb"); if (ret) return ret; diff --git a/drivers/gpu/drm/virtio/virtgpu_drv.c b/drivers/gpu/drm/virtio/virtgpu_drv.c index 0fc32fa0b3c0..3d24181636e1 100644 --- a/drivers/gpu/drm/virtio/virtgpu_drv.c +++ b/drivers/gpu/drm/virtio/virtgpu_drv.c @@ -56,7 +56,6 @@ static int virtio_gpu_pci_quirk(struct drm_device *dev, struct virtio_device *vd dev->pdev = pdev; if (vga) drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, - 0, "virtiodrmfb"); /* diff --git a/include/drm/drm_fb_helper.h b/include/drm/drm_fb_helper.h index 5a5f4b1d8241..8dcc012ccbc8 100644 --- a/include/drm/drm_fb_helper.h +++ b/include/drm/drm_fb_helper.h @@ -539,18 +539,16 @@ drm_fb_helper_remove_conflicting_framebuffers(struct apertures_struct *a, /** * drm_fb_helper_remove_conflicting_pci_framebuffers - remove firmware-configured framebuffers for PCI devices * @pdev: PCI device - * @resource_id: index of PCI BAR configuring framebuffer memory * @name: requesting driver name * * This function removes framebuffer devices (eg. initialized by firmware) - * using memory range configured for @pdev's BAR @resource_id. + * using memory range configured for any of @pdev's memory bars. * * The function assumes that PCI device with shadowed ROM drives a primary * display and so kicks out vga16fb. */ static inline int drm_fb_helper_remove_conflicting_pci_framebuffers(struct pci_dev *pdev, - int resource_id, const char *name) { int ret = 0; From f2521f7731ed72a42c7ea24fd24acc3d1a806e0d Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 22 Aug 2019 11:06:45 +0200 Subject: [PATCH 003/210] drm/i915: switch to drm_fb_helper_remove_conflicting_pci_framebuffers No need for a home-grown version, the generic helper should work just fine. It also handles vgacon removal these days, see commit 1c74ca7a1a9a ("drm/fb-helper: call vga_remove_vgacon automatically."), so that can be removed too. Signed-off-by: Gerd Hoffmann Reviewed-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20190822090645.25410-4-kraxel@redhat.com --- drivers/gpu/drm/i915/i915_drv.c | 41 ++------------------------------- 1 file changed, 2 insertions(+), 39 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index b99d73c1c4db..ddc317ceb8de 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -766,31 +766,6 @@ out: return ret; } -static int i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv) -{ - struct apertures_struct *ap; - struct pci_dev *pdev = dev_priv->drm.pdev; - struct i915_ggtt *ggtt = &dev_priv->ggtt; - bool primary; - int ret; - - ap = alloc_apertures(1); - if (!ap) - return -ENOMEM; - - ap->ranges[0].base = ggtt->gmadr.start; - ap->ranges[0].size = ggtt->mappable_end; - - primary = - pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; - - ret = drm_fb_helper_remove_conflicting_framebuffers(ap, "inteldrmfb", primary); - - kfree(ap); - - return ret; -} - static void intel_init_dpio(struct drm_i915_private *dev_priv) { /* @@ -1570,21 +1545,9 @@ static int i915_driver_init_hw(struct drm_i915_private *dev_priv) if (ret) goto err_perf; - /* - * WARNING: Apparently we must kick fbdev drivers before vgacon, - * otherwise the vga fbdev driver falls over. - */ - ret = i915_kick_out_firmware_fb(dev_priv); - if (ret) { - DRM_ERROR("failed to remove conflicting framebuffer drivers\n"); + ret = drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "inteldrmfb"); + if (ret) goto err_ggtt; - } - - ret = vga_remove_vgacon(pdev); - if (ret) { - DRM_ERROR("failed to remove conflicting VGA console\n"); - goto err_ggtt; - } ret = i915_ggtt_init_hw(dev_priv); if (ret) From 52282163dfa651849e905886845bcf6850dd83c2 Mon Sep 17 00:00:00 2001 From: Steven Price Date: Thu, 22 Aug 2019 10:32:18 +0100 Subject: [PATCH 004/210] drm/panfrost: Add missing check for pfdev->regulator When modifying panfrost_devfreq_target() to support a device without a regulator defined I missed the check on the error path. Let's add it. Reported-by: Dan Carpenter Fixes: e21dd290881b ("drm/panfrost: Enable devfreq to work without regulator") Signed-off-by: Steven Price Signed-off-by: Rob Herring Link: https://patchwork.freedesktop.org/patch/msgid/20190822093218.26014-1-steven.price@arm.com --- drivers/gpu/drm/panfrost/panfrost_devfreq.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_devfreq.c b/drivers/gpu/drm/panfrost/panfrost_devfreq.c index 710d903f8e0d..a1f5fa6a742a 100644 --- a/drivers/gpu/drm/panfrost/panfrost_devfreq.c +++ b/drivers/gpu/drm/panfrost/panfrost_devfreq.c @@ -53,8 +53,10 @@ static int panfrost_devfreq_target(struct device *dev, unsigned long *freq, if (err) { dev_err(dev, "Cannot set frequency %lu (%d)\n", target_rate, err); - regulator_set_voltage(pfdev->regulator, pfdev->devfreq.cur_volt, - pfdev->devfreq.cur_volt); + if (pfdev->regulator) + regulator_set_voltage(pfdev->regulator, + pfdev->devfreq.cur_volt, + pfdev->devfreq.cur_volt); return err; } From 97588c89993d1fb6bf4026984c0c099a5122b0b2 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 22 Aug 2019 20:33:57 -0500 Subject: [PATCH 005/210] MAINTAINERS: Add Steven and Alyssa as panfrost reviewers Add Steven Price and Alyssa Rosenzweig as reviewers as they have been the primary reviewers already. Cc: Steven Price Cc: Alyssa Rosenzweig Cc: Tomeu Vizoso Signed-off-by: Rob Herring Acked-by: Neil Armstrong Acked-by: Steven Price Acked-by: Tomeu Vizoso Reviewed-by: Alyssa Rosenzweig Link: https://patchwork.freedesktop.org/patch/msgid/20190823013357.932-1-robh@kernel.org --- MAINTAINERS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 67b75fc33c61..28f4a20940cb 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1255,6 +1255,8 @@ F: Documentation/gpu/afbc.rst ARM MALI PANFROST DRM DRIVER M: Rob Herring M: Tomeu Vizoso +R: Steven Price +R: Alyssa Rosenzweig L: dri-devel@lists.freedesktop.org S: Supported T: git git://anongit.freedesktop.org/drm/drm-misc From 593bc4d008cf75daa924f73bd39b34dd03c4e8de Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 22 Aug 2019 21:12:09 -0500 Subject: [PATCH 006/210] drm/panfrost: Fix possible suspend in panfrost_remove Calls to panfrost_device_fini() access the h/w, but we already done a pm_runtime_put_sync_autosuspend() beforehand. This only works if the autosuspend delay is long enough. A 0ms delay will hang the system when removing the device. Fix this by moving the pm_runtime_put_sync_suspend() after the panfrost_device_fini() call. Cc: Tomeu Vizoso Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Rob Herring Reviewed-by: Steven Price Acked-by: Alyssa Rosenzweig Link: https://patchwork.freedesktop.org/patch/msgid/20190823021216.5862-2-robh@kernel.org --- drivers/gpu/drm/panfrost/panfrost_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_drv.c b/drivers/gpu/drm/panfrost/panfrost_drv.c index 44a558c6e17e..d74442d71048 100644 --- a/drivers/gpu/drm/panfrost/panfrost_drv.c +++ b/drivers/gpu/drm/panfrost/panfrost_drv.c @@ -570,11 +570,13 @@ static int panfrost_remove(struct platform_device *pdev) drm_dev_unregister(ddev); panfrost_gem_shrinker_cleanup(ddev); + pm_runtime_get_sync(pfdev->dev); - pm_runtime_put_sync_autosuspend(pfdev->dev); - pm_runtime_disable(pfdev->dev); panfrost_devfreq_fini(pfdev); panfrost_device_fini(pfdev); + pm_runtime_put_sync_suspend(pfdev->dev); + pm_runtime_disable(pfdev->dev); + drm_dev_put(ddev); return 0; } From 4fa3d66f132b337be43ef2e7fb45064ecb2097f1 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 22 Aug 2019 21:12:12 -0500 Subject: [PATCH 007/210] drm/shmem: Do dma_unmap_sg before purging pages Calling dma_unmap_sg() in drm_gem_shmem_free_object() is too late if the backing pages have already been released by the shrinker. The result is the following abort: Unable to handle kernel paging request at virtual address ffff8000098ed000 Mem abort info: ESR = 0x96000147 Exception class = DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 Data abort info: ISV = 0, ISS = 0x00000147 CM = 1, WnR = 1 swapper pgtable: 4k pages, 48-bit VAs, pgdp=0000000002f51000 [ffff8000098ed000] pgd=00000000401f8003, pud=00000000401f7003, pmd=00000000401b1003, pte=00e80000098ed712 Internal error: Oops: 96000147 [#1] SMP Modules linked in: panfrost gpu_sched CPU: 5 PID: 902 Comm: gnome-shell Not tainted 5.3.0-rc1+ #95 Hardware name: 96boards Rock960 (DT) pstate: 40000005 (nZcv daif -PAN -UAO) pc : __dma_inv_area+0x40/0x58 lr : arch_sync_dma_for_cpu+0x28/0x30 sp : ffff00001321ba30 x29: ffff00001321ba30 x28: ffff00001321bd08 x27: 0000000000000000 x26: 0000000000000009 x25: 0000ffffc1f86170 x24: 0000000000000000 x23: 0000000000000000 x22: 0000000000000000 x21: 0000000000021000 x20: ffff80003bb2d810 x19: 00000000098ed000 x18: 0000000000000000 x17: 0000000000000000 x16: ffff800023fd9480 x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000000 x12: 0000000000000000 x11: 00000000fffb9fff x10: 0000000000000000 x9 : 0000000000000000 x8 : ffff800023fd9c18 x7 : 0000000000000000 x6 : 00000000ffffffff x5 : 0000000000000000 x4 : 0000000000021000 Purging 5693440 bytes x3 : 000000000000003f x2 : 0000000000000040 x1 : ffff80000990e000 x0 : ffff8000098ed000 Call trace: __dma_inv_area+0x40/0x58 dma_direct_sync_single_for_cpu+0x7c/0x80 dma_direct_unmap_page+0x80/0x88 dma_direct_unmap_sg+0x54/0x80 drm_gem_shmem_free_object+0xfc/0x108 panfrost_gem_free_object+0x118/0x128 [panfrost] drm_gem_object_free+0x18/0x90 drm_gem_object_put_unlocked+0x58/0x80 drm_gem_object_handle_put_unlocked+0x64/0xb0 drm_gem_object_release_handle+0x70/0x98 drm_gem_handle_delete+0x64/0xb0 drm_gem_close_ioctl+0x28/0x38 drm_ioctl_kernel+0xb8/0x110 drm_ioctl+0x244/0x3f0 do_vfs_ioctl+0xbc/0x910 ksys_ioctl+0x78/0xa8 __arm64_sys_ioctl+0x1c/0x28 el0_svc_common.constprop.0+0x88/0x150 el0_svc_handler+0x28/0x78 el0_svc+0x8/0xc Code: 8a230000 54000060 d50b7e20 14000002 (d5087620) Fixes: 17acb9f35ed7 ("drm/shmem: Add madvise state and purge helpers") Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Sean Paul Cc: David Airlie Cc: Daniel Vetter Reviewed-by: Steven Price Signed-off-by: Rob Herring Acked-by: Alyssa Rosenzweig Link: https://patchwork.freedesktop.org/patch/msgid/20190823021216.5862-5-robh@kernel.org --- drivers/gpu/drm/drm_gem_shmem_helper.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index df8f2c8adb2b..5423ec56b535 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -390,6 +390,12 @@ void drm_gem_shmem_purge_locked(struct drm_gem_object *obj) WARN_ON(!drm_gem_shmem_is_purgeable(shmem)); + dma_unmap_sg(obj->dev->dev, shmem->sgt->sgl, + shmem->sgt->nents, DMA_BIDIRECTIONAL); + sg_free_table(shmem->sgt); + kfree(shmem->sgt); + shmem->sgt = NULL; + drm_gem_shmem_put_pages_locked(shmem); shmem->madv = -1; From dfbc7a46b940b5d5ef8c3db3b7c3b51e6ec8fec4 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 22 Aug 2019 21:12:13 -0500 Subject: [PATCH 008/210] drm/shmem: Use mutex_trylock in drm_gem_shmem_purge Lockdep reports a circular locking dependency with pages_lock taken in the shrinker callback. The deadlock can't actually happen with current users at least as a BO will never be purgeable when pages_lock is held. To be safe, let's use mutex_trylock() instead and bail if a BO is locked already. WARNING: possible circular locking dependency detected 5.3.0-rc1+ #100 Tainted: G L ------------------------------------------------------ kswapd0/171 is trying to acquire lock: 000000009b9823fd (&shmem->pages_lock){+.+.}, at: drm_gem_shmem_purge+0x20/0x40 but task is already holding lock: 00000000f82369b6 (fs_reclaim){+.+.}, at: __fs_reclaim_acquire+0x0/0x40 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (fs_reclaim){+.+.}: fs_reclaim_acquire.part.18+0x34/0x40 fs_reclaim_acquire+0x20/0x28 __kmalloc_node+0x6c/0x4c0 kvmalloc_node+0x38/0xa8 drm_gem_get_pages+0x80/0x1d0 drm_gem_shmem_get_pages+0x58/0xa0 drm_gem_shmem_get_pages_sgt+0x48/0xd0 panfrost_mmu_map+0x38/0xf8 [panfrost] panfrost_gem_open+0xc0/0xe8 [panfrost] drm_gem_handle_create_tail+0xe8/0x198 drm_gem_handle_create+0x3c/0x50 panfrost_gem_create_with_handle+0x70/0xa0 [panfrost] panfrost_ioctl_create_bo+0x48/0x80 [panfrost] drm_ioctl_kernel+0xb8/0x110 drm_ioctl+0x244/0x3f0 do_vfs_ioctl+0xbc/0x910 ksys_ioctl+0x78/0xa8 __arm64_sys_ioctl+0x1c/0x28 el0_svc_common.constprop.0+0x90/0x168 el0_svc_handler+0x28/0x78 el0_svc+0x8/0xc -> #0 (&shmem->pages_lock){+.+.}: __lock_acquire+0xa2c/0x1d70 lock_acquire+0xdc/0x228 __mutex_lock+0x8c/0x800 mutex_lock_nested+0x1c/0x28 drm_gem_shmem_purge+0x20/0x40 panfrost_gem_shrinker_scan+0xc0/0x180 [panfrost] do_shrink_slab+0x208/0x500 shrink_slab+0x10c/0x2c0 shrink_node+0x28c/0x4d8 balance_pgdat+0x2c8/0x570 kswapd+0x22c/0x638 kthread+0x128/0x130 ret_from_fork+0x10/0x18 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(fs_reclaim); lock(&shmem->pages_lock); lock(fs_reclaim); lock(&shmem->pages_lock); *** DEADLOCK *** 3 locks held by kswapd0/171: #0: 00000000f82369b6 (fs_reclaim){+.+.}, at: __fs_reclaim_acquire+0x0/0x40 #1: 00000000ceb37808 (shrinker_rwsem){++++}, at: shrink_slab+0xbc/0x2c0 #2: 00000000f31efa81 (&pfdev->shrinker_lock){+.+.}, at: panfrost_gem_shrinker_scan+0x34/0x180 [panfrost] Fixes: 17acb9f35ed7 ("drm/shmem: Add madvise state and purge helpers") Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Sean Paul Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Rob Herring Reviewed-by: Steven Price Acked-by: Alyssa Rosenzweig Link: https://patchwork.freedesktop.org/patch/msgid/20190823021216.5862-6-robh@kernel.org --- drivers/gpu/drm/drm_gem_shmem_helper.c | 7 +++++-- include/drm/drm_gem_shmem_helper.h | 2 +- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c index 5423ec56b535..f5918707672f 100644 --- a/drivers/gpu/drm/drm_gem_shmem_helper.c +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c @@ -415,13 +415,16 @@ void drm_gem_shmem_purge_locked(struct drm_gem_object *obj) } EXPORT_SYMBOL(drm_gem_shmem_purge_locked); -void drm_gem_shmem_purge(struct drm_gem_object *obj) +bool drm_gem_shmem_purge(struct drm_gem_object *obj) { struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); - mutex_lock(&shmem->pages_lock); + if (!mutex_trylock(&shmem->pages_lock)) + return false; drm_gem_shmem_purge_locked(obj); mutex_unlock(&shmem->pages_lock); + + return true; } EXPORT_SYMBOL(drm_gem_shmem_purge); diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h index ce1600fdfc3e..01f514521687 100644 --- a/include/drm/drm_gem_shmem_helper.h +++ b/include/drm/drm_gem_shmem_helper.h @@ -134,7 +134,7 @@ static inline bool drm_gem_shmem_is_purgeable(struct drm_gem_shmem_object *shmem } void drm_gem_shmem_purge_locked(struct drm_gem_object *obj); -void drm_gem_shmem_purge(struct drm_gem_object *obj); +bool drm_gem_shmem_purge(struct drm_gem_object *obj); struct drm_gem_shmem_object * drm_gem_shmem_create_with_handle(struct drm_file *file_priv, From ce49324261956f4bdec633280f30bf0697dafaef Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Thu, 22 Aug 2019 21:12:14 -0500 Subject: [PATCH 009/210] drm/panfrost: Use mutex_trylock in panfrost_gem_purge Lockdep reports a circular locking dependency with pages_lock taken in the shrinker callback. The deadlock can't actually happen with current users at least as a BO will never be purgeable when pages_lock is held. To be safe, let's use mutex_trylock() instead and bail if a BO is locked already. Cc: Tomeu Vizoso Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Rob Herring Reviewed-by: Steven Price Acked-by: Alyssa Rosenzweig Link: https://patchwork.freedesktop.org/patch/msgid/20190823021216.5862-7-robh@kernel.org --- drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c b/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c index d191632b6197..458f0fa68111 100644 --- a/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c +++ b/drivers/gpu/drm/panfrost/panfrost_gem_shrinker.c @@ -36,15 +36,18 @@ panfrost_gem_shrinker_count(struct shrinker *shrinker, struct shrink_control *sc return count; } -static void panfrost_gem_purge(struct drm_gem_object *obj) +static bool panfrost_gem_purge(struct drm_gem_object *obj) { struct drm_gem_shmem_object *shmem = to_drm_gem_shmem_obj(obj); - mutex_lock(&shmem->pages_lock); + + if (!mutex_trylock(&shmem->pages_lock)) + return false; panfrost_mmu_unmap(to_panfrost_bo(obj)); drm_gem_shmem_purge_locked(obj); mutex_unlock(&shmem->pages_lock); + return true; } static unsigned long @@ -61,8 +64,8 @@ panfrost_gem_shrinker_scan(struct shrinker *shrinker, struct shrink_control *sc) list_for_each_entry_safe(shmem, tmp, &pfdev->shrinker_list, madv_list) { if (freed >= sc->nr_to_scan) break; - if (drm_gem_shmem_is_purgeable(shmem)) { - panfrost_gem_purge(&shmem->base); + if (drm_gem_shmem_is_purgeable(shmem) && + panfrost_gem_purge(&shmem->base)) { freed += shmem->base.size >> PAGE_SHIFT; list_del_init(&shmem->madv_list); } From 1c5f087a2bb2c4f971e6f80e2bafb064d407ae5f Mon Sep 17 00:00:00 2001 From: Alyssa Rosenzweig Date: Fri, 23 Aug 2019 08:51:49 -0700 Subject: [PATCH 010/210] drm/panfrost: Add errata descriptions from kbase While newer kbase include only the numbers of errata, older kbase releases included one-line descriptions for each errata, which is useful for those working on the driver. Import these descriptions. Most are from kbase verbatim; a few I edited for clarity. v2: Wrote a description for the workaround of an issue whose cause is still unknown (Stephen). Errata which pertain to newer models unsupported by the mainline driver, for which Arm has not yet released errata information, have been removed from the issue list as the kernel need not concern itself with these. v3: Readded errata not yet handled, adding descriptions based on the workarounds in the latest kbase release. Signed-off-by: Alyssa Rosenzweig Signed-off-by: Rob Herring Link: https://patchwork.freedesktop.org/patch/msgid/20190823155149.7272-1-alyssa.rosenzweig@collabora.com --- drivers/gpu/drm/panfrost/panfrost_issues.h | 81 ++++++++++++++++++++++ 1 file changed, 81 insertions(+) diff --git a/drivers/gpu/drm/panfrost/panfrost_issues.h b/drivers/gpu/drm/panfrost/panfrost_issues.h index cec6dcdadb5c..8e59d765bf19 100644 --- a/drivers/gpu/drm/panfrost/panfrost_issues.h +++ b/drivers/gpu/drm/panfrost/panfrost_issues.h @@ -13,37 +13,118 @@ * to care about. */ enum panfrost_hw_issue { + /* Need way to guarantee that all previously-translated memory accesses + * are commited */ HW_ISSUE_6367, + + /* On job complete with non-done the cache is not flushed */ HW_ISSUE_6787, + + /* Write of PRFCNT_CONFIG_MODE_MANUAL to PRFCNT_CONFIG causes a + * instrumentation dump if PRFCNT_TILER_EN is enabled */ HW_ISSUE_8186, + + /* TIB: Reports faults from a vtile which has not yet been allocated */ HW_ISSUE_8245, + + /* uTLB deadlock could occur when writing to an invalid page at the + * same time as access to a valid page in the same uTLB cache line ( == + * 4 PTEs == 16K block of mapping) */ HW_ISSUE_8316, + + /* HT: TERMINATE for RUN command ignored if previous LOAD_DESCRIPTOR is + * still executing */ HW_ISSUE_8394, + + /* CSE: Sends a TERMINATED response for a task that should not be + * terminated */ HW_ISSUE_8401, + + /* Repeatedly Soft-stopping a job chain consisting of (Vertex Shader, + * Cache Flush, Tiler) jobs causes DATA_INVALID_FAULT on tiler job. */ HW_ISSUE_8408, + + /* Disable the Pause Buffer in the LS pipe. */ HW_ISSUE_8443, + + /* Change in RMUs in use causes problems related with the core's SDC */ HW_ISSUE_8987, + + /* Compute endpoint has a 4-deep queue of tasks, meaning a soft stop + * won't complete until all 4 tasks have completed */ HW_ISSUE_9435, + + /* HT: Tiler returns TERMINATED for non-terminated command */ HW_ISSUE_9510, + + /* Occasionally the GPU will issue multiple page faults for the same + * address before the MMU page table has been read by the GPU */ HW_ISSUE_9630, + + /* RA DCD load request to SDC returns invalid load ignore causing + * colour buffer mismatch */ HW_ISSUE_10327, + + /* MMU TLB invalidation hazards */ HW_ISSUE_10649, + + /* Missing cache flush in multi core-group configuration */ HW_ISSUE_10676, + + /* Chicken bit on T72X for a hardware workaround in compiler */ HW_ISSUE_10797, + + /* Soft-stopping fragment jobs might fail with TILE_RANGE_FAULT */ HW_ISSUE_10817, + + /* Intermittent missing interrupt on job completion */ HW_ISSUE_10883, + + /* Soft-stopping fragment jobs might fail with TILE_RANGE_ERROR + * (similar to issue 10817) and can use #10817 workaround */ HW_ISSUE_10959, + + /* Soft-stopped fragment shader job can restart with out-of-bound + * restart index */ HW_ISSUE_10969, + + /* Race condition can cause tile list corruption */ HW_ISSUE_11020, + + /* Write buffer can cause tile list corruption */ HW_ISSUE_11024, + + /* Pause buffer can cause a fragment job hang */ HW_ISSUE_11035, + + /* Dynamic Core Scaling not supported due to errata */ HW_ISSUE_11056, + + /* Clear encoder state for a hard stopped fragment job which is AFBC + * encoded by soft resetting the GPU. Only for T76X r0p0, r0p1 and + * r0p1_50rel0 */ HW_ISSUE_T76X_3542, + + /* Keep tiler module clock on to prevent GPU stall */ HW_ISSUE_T76X_3953, + + /* Must ensure L2 is not transitioning when we reset. Workaround with a + * busy wait until L2 completes transition; ensure there is a maximum + * loop count as she may never complete her transition. (On chips + * without this errata, it's totally okay if L2 transitions.) */ HW_ISSUE_TMIX_8463, + + /* Don't set SC_LS_ATTR_CHECK_DISABLE/SC_LS_ALLOW_ATTR_TYPES */ GPUCORE_1619, + + /* When a hard-stop follows close after a soft-stop, the completion + * code for the terminated job may be incorrectly set to STOPPED */ HW_ISSUE_TMIX_8438, + + /* "Protected mode" is buggy on Mali-G31 some Bifrost chips, so the + * kernel must fiddle with L2 caches to prevent data leakage */ HW_ISSUE_TGOX_R1_1234, + HW_ISSUE_END }; From 65abbda8ed7ca48c8807d6b04a77431b438fa659 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 23 Aug 2019 22:32:42 +0300 Subject: [PATCH 011/210] drm/panel: Add missing drm_panel_init() in panel drivers Panels must be initialised with drm_panel_init(). Add the missing function call in the panel-raspberrypi-touchscreen.c and panel-sitronix-st7789v.c drivers. Signed-off-by: Laurent Pinchart Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20190823193245.23876-2-laurent.pinchart@ideasonboard.com --- drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 1 + drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c index b5b14aa059ea..2aa89eaecf6f 100644 --- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c +++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c @@ -426,6 +426,7 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c, return PTR_ERR(ts->dsi); } + drm_panel_init(&ts->base); ts->base.dev = dev; ts->base.funcs = &rpi_touchscreen_funcs; diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c index 5e3e92ea9ea6..3b2612ae931e 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c @@ -381,6 +381,7 @@ static int st7789v_probe(struct spi_device *spi) spi_set_drvdata(spi, ctx); ctx->spi = spi; + drm_panel_init(&ctx->panel); ctx->panel.dev = &spi->dev; ctx->panel.funcs = &st7789v_drm_funcs; From 6dbe0c4b0fc0646442b2b1580d022404e582fd7b Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 23 Aug 2019 22:32:43 +0300 Subject: [PATCH 012/210] drm/panel: Initialise panel dev and funcs through drm_panel_init() Instead of requiring all drivers to set the dev and funcs fields of drm_panel manually after calling drm_panel_init(), pass the data as arguments to the function. This simplifies the panel drivers, and will help future refactoring when adding new arguments to drm_panel_init(). The panel drivers have been updated with the following Coccinelle semantic patch, with manual inspection to verify that no call to drm_panel_init() with a single argument still exists. @@ expression panel; expression device; identifier ops; @@ drm_panel_init(&panel + , device, &ops ); ... ( -panel.dev = device; -panel.funcs = &ops; | -panel.funcs = &ops; -panel.dev = device; ) Suggested-by: Sam Ravnborg Signed-off-by: Laurent Pinchart Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20190823193245.23876-3-laurent.pinchart@ideasonboard.com --- drivers/gpu/drm/drm_panel.c | 11 ++++++++--- drivers/gpu/drm/panel/panel-arm-versatile.c | 4 +--- drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c | 4 +--- drivers/gpu/drm/panel/panel-ilitek-ili9322.c | 4 +--- drivers/gpu/drm/panel/panel-ilitek-ili9881c.c | 4 +--- drivers/gpu/drm/panel/panel-innolux-p079zca.c | 4 +--- drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 4 +--- drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c | 5 ++--- drivers/gpu/drm/panel/panel-lg-lb035q02.c | 4 +--- drivers/gpu/drm/panel/panel-lg-lg4573.c | 4 +--- drivers/gpu/drm/panel/panel-lvds.c | 4 +--- drivers/gpu/drm/panel/panel-nec-nl8048hl11.c | 4 +--- drivers/gpu/drm/panel/panel-novatek-nt39016.c | 4 +--- drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c | 4 +--- drivers/gpu/drm/panel/panel-orisetech-otm8009a.c | 4 +--- drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c | 5 ++--- drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c | 5 ++--- drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c | 4 +--- drivers/gpu/drm/panel/panel-raydium-rm67191.c | 4 +--- drivers/gpu/drm/panel/panel-raydium-rm68200.c | 4 +--- drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c | 4 +--- drivers/gpu/drm/panel/panel-ronbo-rb070d30.c | 4 +--- drivers/gpu/drm/panel/panel-samsung-ld9040.c | 4 +--- drivers/gpu/drm/panel/panel-samsung-s6d16d0.c | 4 +--- drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c | 4 +--- drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c | 4 +--- drivers/gpu/drm/panel/panel-samsung-s6e63m0.c | 4 +--- drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c | 4 +--- drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 4 +--- drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c | 4 +--- drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c | 4 +--- drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c | 5 ++--- drivers/gpu/drm/panel/panel-simple.c | 4 +--- drivers/gpu/drm/panel/panel-sitronix-st7701.c | 4 +--- drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 4 +--- drivers/gpu/drm/panel/panel-sony-acx565akm.c | 4 +--- drivers/gpu/drm/panel/panel-tpo-td028ttec1.c | 4 +--- drivers/gpu/drm/panel/panel-tpo-td043mtea1.c | 4 +--- drivers/gpu/drm/panel/panel-tpo-tpg110.c | 4 +--- drivers/gpu/drm/panel/panel-truly-nt35597.c | 4 +--- include/drm/drm_panel.h | 3 ++- 41 files changed, 53 insertions(+), 121 deletions(-) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index 6b0bf42039cf..ba2fad4c9648 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -44,13 +44,18 @@ static LIST_HEAD(panel_list); /** * drm_panel_init - initialize a panel * @panel: DRM panel + * @dev: parent device of the panel + * @funcs: panel operations * - * Sets up internal fields of the panel so that it can subsequently be added - * to the registry. + * Initialize the panel structure for subsequent registration with + * drm_panel_add(). */ -void drm_panel_init(struct drm_panel *panel) +void drm_panel_init(struct drm_panel *panel, struct device *dev, + const struct drm_panel_funcs *funcs) { INIT_LIST_HEAD(&panel->list); + panel->dev = dev; + panel->funcs = funcs; } EXPORT_SYMBOL(drm_panel_init); diff --git a/drivers/gpu/drm/panel/panel-arm-versatile.c b/drivers/gpu/drm/panel/panel-arm-versatile.c index 5f72c922a04b..a4333ed0f20c 100644 --- a/drivers/gpu/drm/panel/panel-arm-versatile.c +++ b/drivers/gpu/drm/panel/panel-arm-versatile.c @@ -350,9 +350,7 @@ static int versatile_panel_probe(struct platform_device *pdev) dev_info(dev, "panel mounted on IB2 daughterboard\n"); } - drm_panel_init(&vpanel->panel); - vpanel->panel.dev = dev; - vpanel->panel.funcs = &versatile_panel_drm_funcs; + drm_panel_init(&vpanel->panel, dev, &versatile_panel_drm_funcs); return drm_panel_add(&vpanel->panel); } diff --git a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c index dabf59e0f56f..7d5d7455bc01 100644 --- a/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c +++ b/drivers/gpu/drm/panel/panel-feiyang-fy07024di26a30d.c @@ -204,9 +204,7 @@ static int feiyang_dsi_probe(struct mipi_dsi_device *dsi) mipi_dsi_set_drvdata(dsi, ctx); ctx->dsi = dsi; - drm_panel_init(&ctx->panel); - ctx->panel.dev = &dsi->dev; - ctx->panel.funcs = &feiyang_funcs; + drm_panel_init(&ctx->panel, &dsi->dev, &feiyang_funcs); ctx->dvdd = devm_regulator_get(&dsi->dev, "dvdd"); if (IS_ERR(ctx->dvdd)) { diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9322.c b/drivers/gpu/drm/panel/panel-ilitek-ili9322.c index 3c58f63adbf7..ad2405baa0ac 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9322.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9322.c @@ -895,9 +895,7 @@ static int ili9322_probe(struct spi_device *spi) ili->input = ili->conf->input; } - drm_panel_init(&ili->panel); - ili->panel.dev = dev; - ili->panel.funcs = &ili9322_drm_funcs; + drm_panel_init(&ili->panel, dev, &ili9322_drm_funcs); return drm_panel_add(&ili->panel); } diff --git a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c index 3ad4a46c4e94..1d714f961c00 100644 --- a/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c +++ b/drivers/gpu/drm/panel/panel-ilitek-ili9881c.c @@ -433,9 +433,7 @@ static int ili9881c_dsi_probe(struct mipi_dsi_device *dsi) mipi_dsi_set_drvdata(dsi, ctx); ctx->dsi = dsi; - drm_panel_init(&ctx->panel); - ctx->panel.dev = &dsi->dev; - ctx->panel.funcs = &ili9881c_funcs; + drm_panel_init(&ctx->panel, &dsi->dev, &ili9881c_funcs); ctx->power = devm_regulator_get(&dsi->dev, "power"); if (IS_ERR(ctx->power)) { diff --git a/drivers/gpu/drm/panel/panel-innolux-p079zca.c b/drivers/gpu/drm/panel/panel-innolux-p079zca.c index d92d1c98878c..2054afc31f20 100644 --- a/drivers/gpu/drm/panel/panel-innolux-p079zca.c +++ b/drivers/gpu/drm/panel/panel-innolux-p079zca.c @@ -487,9 +487,7 @@ static int innolux_panel_add(struct mipi_dsi_device *dsi, if (IS_ERR(innolux->backlight)) return PTR_ERR(innolux->backlight); - drm_panel_init(&innolux->base); - innolux->base.funcs = &innolux_panel_funcs; - innolux->base.dev = dev; + drm_panel_init(&innolux->base, dev, &innolux_panel_funcs); err = drm_panel_add(&innolux->base); if (err < 0) diff --git a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c index ff3e89e61e3f..7bfdbfbc868e 100644 --- a/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c +++ b/drivers/gpu/drm/panel/panel-jdi-lt070me05000.c @@ -437,9 +437,7 @@ static int jdi_panel_add(struct jdi_panel *jdi) return ret; } - drm_panel_init(&jdi->base); - jdi->base.funcs = &jdi_panel_funcs; - jdi->base.dev = &jdi->dsi->dev; + drm_panel_init(&jdi->base, &jdi->dsi->dev, &jdi_panel_funcs); ret = drm_panel_add(&jdi->base); diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c index 3ac04eb8d0fe..a47885a1a8aa 100644 --- a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c +++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c @@ -391,9 +391,8 @@ static int kingdisplay_panel_add(struct kingdisplay_panel *kingdisplay) if (IS_ERR(kingdisplay->backlight)) return PTR_ERR(kingdisplay->backlight); - drm_panel_init(&kingdisplay->base); - kingdisplay->base.funcs = &kingdisplay_panel_funcs; - kingdisplay->base.dev = &kingdisplay->link->dev; + drm_panel_init(&kingdisplay->base, &kingdisplay->link->dev, + &kingdisplay_panel_funcs); return drm_panel_add(&kingdisplay->base); } diff --git a/drivers/gpu/drm/panel/panel-lg-lb035q02.c b/drivers/gpu/drm/panel/panel-lg-lb035q02.c index fc82a525b071..28c3205df482 100644 --- a/drivers/gpu/drm/panel/panel-lg-lb035q02.c +++ b/drivers/gpu/drm/panel/panel-lg-lb035q02.c @@ -196,9 +196,7 @@ static int lb035q02_probe(struct spi_device *spi) if (ret < 0) return ret; - drm_panel_init(&lcd->panel); - lcd->panel.dev = &lcd->spi->dev; - lcd->panel.funcs = &lb035q02_funcs; + drm_panel_init(&lcd->panel, &lcd->spi->dev, &lb035q02_funcs); return drm_panel_add(&lcd->panel); } diff --git a/drivers/gpu/drm/panel/panel-lg-lg4573.c b/drivers/gpu/drm/panel/panel-lg-lg4573.c index 41bf02d122a1..608f2de91662 100644 --- a/drivers/gpu/drm/panel/panel-lg-lg4573.c +++ b/drivers/gpu/drm/panel/panel-lg-lg4573.c @@ -259,9 +259,7 @@ static int lg4573_probe(struct spi_device *spi) return ret; } - drm_panel_init(&ctx->panel); - ctx->panel.dev = &spi->dev; - ctx->panel.funcs = &lg4573_drm_funcs; + drm_panel_init(&ctx->panel, &spi->dev, &lg4573_drm_funcs); return drm_panel_add(&ctx->panel); } diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c index ad47cc95459e..3dc1ac2a6b03 100644 --- a/drivers/gpu/drm/panel/panel-lvds.c +++ b/drivers/gpu/drm/panel/panel-lvds.c @@ -260,9 +260,7 @@ static int panel_lvds_probe(struct platform_device *pdev) */ /* Register the panel. */ - drm_panel_init(&lvds->panel); - lvds->panel.dev = lvds->dev; - lvds->panel.funcs = &panel_lvds_funcs; + drm_panel_init(&lvds->panel, lvds->dev, &panel_lvds_funcs); ret = drm_panel_add(&lvds->panel); if (ret < 0) diff --git a/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c b/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c index 299b217c83e1..b67636fdbc21 100644 --- a/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c +++ b/drivers/gpu/drm/panel/panel-nec-nl8048hl11.c @@ -205,9 +205,7 @@ static int nl8048_probe(struct spi_device *spi) if (ret < 0) return ret; - drm_panel_init(&lcd->panel); - lcd->panel.dev = &lcd->spi->dev; - lcd->panel.funcs = &nl8048_funcs; + drm_panel_init(&lcd->panel, &lcd->spi->dev, &nl8048_funcs); return drm_panel_add(&lcd->panel); } diff --git a/drivers/gpu/drm/panel/panel-novatek-nt39016.c b/drivers/gpu/drm/panel/panel-novatek-nt39016.c index 2ad1063b068d..64cfe111aaad 100644 --- a/drivers/gpu/drm/panel/panel-novatek-nt39016.c +++ b/drivers/gpu/drm/panel/panel-novatek-nt39016.c @@ -292,9 +292,7 @@ static int nt39016_probe(struct spi_device *spi) return err; } - drm_panel_init(&panel->drm_panel); - panel->drm_panel.dev = dev; - panel->drm_panel.funcs = &nt39016_funcs; + drm_panel_init(&panel->drm_panel, dev, &nt39016_funcs); err = drm_panel_add(&panel->drm_panel); if (err < 0) { diff --git a/drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c b/drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c index 2bae1db3ff34..f2d6a4ec0046 100644 --- a/drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c +++ b/drivers/gpu/drm/panel/panel-olimex-lcd-olinuxino.c @@ -288,9 +288,7 @@ static int lcd_olinuxino_probe(struct i2c_client *client, if (IS_ERR(lcd->backlight)) return PTR_ERR(lcd->backlight); - drm_panel_init(&lcd->panel); - lcd->panel.dev = dev; - lcd->panel.funcs = &lcd_olinuxino_funcs; + drm_panel_init(&lcd->panel, dev, &lcd_olinuxino_funcs); return drm_panel_add(&lcd->panel); } diff --git a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c index c7b48df8869a..8b60d5e4d775 100644 --- a/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c +++ b/drivers/gpu/drm/panel/panel-orisetech-otm8009a.c @@ -455,9 +455,7 @@ static int otm8009a_probe(struct mipi_dsi_device *dsi) dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM; - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &otm8009a_drm_funcs; + drm_panel_init(&ctx->panel, dev, &otm8009a_drm_funcs); ctx->bl_dev = devm_backlight_device_register(dev, dev_name(dev), dsi->host->dev, ctx, diff --git a/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c b/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c index e0e20ecff916..38f114b03b89 100644 --- a/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c +++ b/drivers/gpu/drm/panel/panel-osd-osd101t2587-53ts.c @@ -166,9 +166,8 @@ static int osd101t2587_panel_add(struct osd101t2587_panel *osd101t2587) if (IS_ERR(osd101t2587->backlight)) return PTR_ERR(osd101t2587->backlight); - drm_panel_init(&osd101t2587->base); - osd101t2587->base.funcs = &osd101t2587_panel_funcs; - osd101t2587->base.dev = &osd101t2587->dsi->dev; + drm_panel_init(&osd101t2587->base, &osd101t2587->dsi->dev, + &osd101t2587_panel_funcs); return drm_panel_add(&osd101t2587->base); } diff --git a/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c b/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c index 3dff0b3f73c2..6035bf458074 100644 --- a/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c +++ b/drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c @@ -223,9 +223,8 @@ static int wuxga_nt_panel_add(struct wuxga_nt_panel *wuxga_nt) return -EPROBE_DEFER; } - drm_panel_init(&wuxga_nt->base); - wuxga_nt->base.funcs = &wuxga_nt_panel_funcs; - wuxga_nt->base.dev = &wuxga_nt->dsi->dev; + drm_panel_init(&wuxga_nt->base, &wuxga_nt->dsi->dev, + &wuxga_nt_panel_funcs); ret = drm_panel_add(&wuxga_nt->base); if (ret < 0) diff --git a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c index 2aa89eaecf6f..23a801427e42 100644 --- a/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c +++ b/drivers/gpu/drm/panel/panel-raspberrypi-touchscreen.c @@ -426,9 +426,7 @@ static int rpi_touchscreen_probe(struct i2c_client *i2c, return PTR_ERR(ts->dsi); } - drm_panel_init(&ts->base); - ts->base.dev = dev; - ts->base.funcs = &rpi_touchscreen_funcs; + drm_panel_init(&ts->base, dev, &rpi_touchscreen_funcs); /* This appears last, as it's what will unblock the DSI host * driver's component bind function. diff --git a/drivers/gpu/drm/panel/panel-raydium-rm67191.c b/drivers/gpu/drm/panel/panel-raydium-rm67191.c index 6a5d37006103..f82a1f69f13b 100644 --- a/drivers/gpu/drm/panel/panel-raydium-rm67191.c +++ b/drivers/gpu/drm/panel/panel-raydium-rm67191.c @@ -606,9 +606,7 @@ static int rad_panel_probe(struct mipi_dsi_device *dsi) if (ret) return ret; - drm_panel_init(&panel->panel); - panel->panel.funcs = &rad_panel_funcs; - panel->panel.dev = dev; + drm_panel_init(&panel->panel, dev, &rad_panel_funcs); dev_set_drvdata(dev, panel); ret = drm_panel_add(&panel->panel); diff --git a/drivers/gpu/drm/panel/panel-raydium-rm68200.c b/drivers/gpu/drm/panel/panel-raydium-rm68200.c index ba889625ad43..f004b78fb8bc 100644 --- a/drivers/gpu/drm/panel/panel-raydium-rm68200.c +++ b/drivers/gpu/drm/panel/panel-raydium-rm68200.c @@ -404,9 +404,7 @@ static int rm68200_probe(struct mipi_dsi_device *dsi) dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST | MIPI_DSI_MODE_LPM; - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &rm68200_drm_funcs; + drm_panel_init(&ctx->panel, dev, &rm68200_drm_funcs); drm_panel_add(&ctx->panel); diff --git a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c index b9109922397f..d7f56374f2f1 100644 --- a/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c +++ b/drivers/gpu/drm/panel/panel-rocktech-jh057n00900.c @@ -343,9 +343,7 @@ static int jh057n_probe(struct mipi_dsi_device *dsi) return ret; } - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &jh057n_drm_funcs; + drm_panel_init(&ctx->panel, dev, &jh057n_drm_funcs); drm_panel_add(&ctx->panel); diff --git a/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c b/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c index 3c15764f0c03..8708fbbe7637 100644 --- a/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c +++ b/drivers/gpu/drm/panel/panel-ronbo-rb070d30.c @@ -173,9 +173,7 @@ static int rb070d30_panel_dsi_probe(struct mipi_dsi_device *dsi) mipi_dsi_set_drvdata(dsi, ctx); ctx->dsi = dsi; - drm_panel_init(&ctx->panel); - ctx->panel.dev = &dsi->dev; - ctx->panel.funcs = &rb070d30_panel_funcs; + drm_panel_init(&ctx->panel, &dsi->dev, &rb070d30_panel_funcs); ctx->gpios.reset = devm_gpiod_get(&dsi->dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(ctx->gpios.reset)) { diff --git a/drivers/gpu/drm/panel/panel-samsung-ld9040.c b/drivers/gpu/drm/panel/panel-samsung-ld9040.c index 3be902dcedc0..71a292dbec47 100644 --- a/drivers/gpu/drm/panel/panel-samsung-ld9040.c +++ b/drivers/gpu/drm/panel/panel-samsung-ld9040.c @@ -351,9 +351,7 @@ static int ld9040_probe(struct spi_device *spi) return ret; } - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &ld9040_drm_funcs; + drm_panel_init(&ctx->panel, dev, &ld9040_drm_funcs); return drm_panel_add(&ctx->panel); } diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c b/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c index f75bef24e050..4d25c96e842c 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6d16d0.c @@ -215,9 +215,7 @@ static int s6d16d0_probe(struct mipi_dsi_device *dsi) return ret; } - drm_panel_init(&s6->panel); - s6->panel.dev = dev; - s6->panel.funcs = &s6d16d0_drm_funcs; + drm_panel_init(&s6->panel, dev, &s6d16d0_drm_funcs); ret = drm_panel_add(&s6->panel); if (ret < 0) diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c index b923de23ed65..42a3aaab49eb 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e3ha2.c @@ -732,9 +732,7 @@ static int s6e3ha2_probe(struct mipi_dsi_device *dsi) ctx->bl_dev->props.brightness = S6E3HA2_DEFAULT_BRIGHTNESS; ctx->bl_dev->props.power = FB_BLANK_POWERDOWN; - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &s6e3ha2_drm_funcs; + drm_panel_init(&ctx->panel, dev, &s6e3ha2_drm_funcs); ret = drm_panel_add(&ctx->panel); if (ret < 0) diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c index cd90fa700c49..b4d879bf4d03 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e63j0x03.c @@ -466,9 +466,7 @@ static int s6e63j0x03_probe(struct mipi_dsi_device *dsi) return PTR_ERR(ctx->reset_gpio); } - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &s6e63j0x03_funcs; + drm_panel_init(&ctx->panel, dev, &s6e63j0x03_funcs); ctx->bl_dev = backlight_device_register("s6e63j0x03", dev, ctx, &s6e63j0x03_bl_ops, NULL); diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e63m0.c b/drivers/gpu/drm/panel/panel-samsung-s6e63m0.c index 142d395ea512..61259c2833ab 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e63m0.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e63m0.c @@ -473,9 +473,7 @@ static int s6e63m0_probe(struct spi_device *spi) return ret; } - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &s6e63m0_drm_funcs; + drm_panel_init(&ctx->panel, dev, &s6e63m0_drm_funcs); ret = s6e63m0_backlight_register(ctx); if (ret < 0) diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c index 81858267723a..35dbffabd526 100644 --- a/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c +++ b/drivers/gpu/drm/panel/panel-samsung-s6e8aa0.c @@ -1017,9 +1017,7 @@ static int s6e8aa0_probe(struct mipi_dsi_device *dsi) ctx->brightness = GAMMA_LEVEL_NUM - 1; - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &s6e8aa0_drm_funcs; + drm_panel_init(&ctx->panel, dev, &s6e8aa0_drm_funcs); ret = drm_panel_add(&ctx->panel); if (ret < 0) diff --git a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c index 18b22b1294fb..0833d0c03adc 100644 --- a/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c +++ b/drivers/gpu/drm/panel/panel-seiko-43wvf1g.c @@ -274,9 +274,7 @@ static int seiko_panel_probe(struct device *dev, return -EPROBE_DEFER; } - drm_panel_init(&panel->base); - panel->base.dev = dev; - panel->base.funcs = &seiko_panel_funcs; + drm_panel_init(&panel->base, dev, &seiko_panel_funcs); err = drm_panel_add(&panel->base); if (err < 0) diff --git a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c index e910b4ad1310..87a58cb4d945 100644 --- a/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c +++ b/drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c @@ -329,9 +329,7 @@ static int sharp_panel_add(struct sharp_panel *sharp) if (IS_ERR(sharp->backlight)) return PTR_ERR(sharp->backlight); - drm_panel_init(&sharp->base); - sharp->base.funcs = &sharp_panel_funcs; - sharp->base.dev = &sharp->link1->dev; + drm_panel_init(&sharp->base, &sharp->link1->dev, &sharp_panel_funcs); return drm_panel_add(&sharp->base); } diff --git a/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c b/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c index 46cd9a250129..96e3deb0e305 100644 --- a/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c +++ b/drivers/gpu/drm/panel/panel-sharp-ls037v7dw01.c @@ -185,9 +185,7 @@ static int ls037v7dw01_probe(struct platform_device *pdev) return PTR_ERR(lcd->ud_gpio); } - drm_panel_init(&lcd->panel); - lcd->panel.dev = &pdev->dev; - lcd->panel.funcs = &ls037v7dw01_funcs; + drm_panel_init(&lcd->panel, &pdev->dev, &ls037v7dw01_funcs); return drm_panel_add(&lcd->panel); } diff --git a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c index c39abde9f9f1..ffa844ee82ad 100644 --- a/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c +++ b/drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c @@ -264,9 +264,8 @@ static int sharp_nt_panel_add(struct sharp_nt_panel *sharp_nt) if (IS_ERR(sharp_nt->backlight)) return PTR_ERR(sharp_nt->backlight); - drm_panel_init(&sharp_nt->base); - sharp_nt->base.funcs = &sharp_nt_panel_funcs; - sharp_nt->base.dev = &sharp_nt->dsi->dev; + drm_panel_init(&sharp_nt->base, &sharp_nt->dsi->dev, + &sharp_nt_panel_funcs); return drm_panel_add(&sharp_nt->base); } diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c index 28fa6ba7b767..b36c130d5cf0 100644 --- a/drivers/gpu/drm/panel/panel-simple.c +++ b/drivers/gpu/drm/panel/panel-simple.c @@ -464,9 +464,7 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc) if (!of_get_display_timing(dev->of_node, "panel-timing", &dt)) panel_simple_parse_panel_timing_node(dev, panel, &dt); - drm_panel_init(&panel->base); - panel->base.dev = dev; - panel->base.funcs = &panel_simple_funcs; + drm_panel_init(&panel->base, dev, &panel_simple_funcs); err = drm_panel_add(&panel->base); if (err < 0) diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7701.c b/drivers/gpu/drm/panel/panel-sitronix-st7701.c index 09c5d9a6f9fa..3f7bcd24aa81 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7701.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7701.c @@ -369,7 +369,7 @@ static int st7701_dsi_probe(struct mipi_dsi_device *dsi) if (IS_ERR(st7701->backlight)) return PTR_ERR(st7701->backlight); - drm_panel_init(&st7701->panel); + drm_panel_init(&st7701->panel, &dsi->dev, &st7701_funcs); /** * Once sleep out has been issued, ST7701 IC required to wait 120ms @@ -381,8 +381,6 @@ static int st7701_dsi_probe(struct mipi_dsi_device *dsi) * ts8550b and there is no valid documentation for that. */ st7701->sleep_delay = 120 + desc->panel_sleep_delay; - st7701->panel.funcs = &st7701_funcs; - st7701->panel.dev = &dsi->dev; ret = drm_panel_add(&st7701->panel); if (ret < 0) diff --git a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c index 3b2612ae931e..2eeaeee0dd7f 100644 --- a/drivers/gpu/drm/panel/panel-sitronix-st7789v.c +++ b/drivers/gpu/drm/panel/panel-sitronix-st7789v.c @@ -381,9 +381,7 @@ static int st7789v_probe(struct spi_device *spi) spi_set_drvdata(spi, ctx); ctx->spi = spi; - drm_panel_init(&ctx->panel); - ctx->panel.dev = &spi->dev; - ctx->panel.funcs = &st7789v_drm_funcs; + drm_panel_init(&ctx->panel, &spi->dev, &st7789v_drm_funcs); ctx->power = devm_regulator_get(&spi->dev, "power"); if (IS_ERR(ctx->power)) diff --git a/drivers/gpu/drm/panel/panel-sony-acx565akm.c b/drivers/gpu/drm/panel/panel-sony-acx565akm.c index 305259b58767..5a2772b04b75 100644 --- a/drivers/gpu/drm/panel/panel-sony-acx565akm.c +++ b/drivers/gpu/drm/panel/panel-sony-acx565akm.c @@ -648,9 +648,7 @@ static int acx565akm_probe(struct spi_device *spi) return ret; } - drm_panel_init(&lcd->panel); - lcd->panel.dev = &lcd->spi->dev; - lcd->panel.funcs = &acx565akm_funcs; + drm_panel_init(&lcd->panel, &lcd->spi->dev, &acx565akm_funcs); ret = drm_panel_add(&lcd->panel); if (ret < 0) { diff --git a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c index d7b2e34626ef..8b1148d74e7b 100644 --- a/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c +++ b/drivers/gpu/drm/panel/panel-tpo-td028ttec1.c @@ -347,9 +347,7 @@ static int td028ttec1_probe(struct spi_device *spi) return ret; } - drm_panel_init(&lcd->panel); - lcd->panel.dev = &lcd->spi->dev; - lcd->panel.funcs = &td028ttec1_funcs; + drm_panel_init(&lcd->panel, &lcd->spi->dev, &td028ttec1_funcs); return drm_panel_add(&lcd->panel); } diff --git a/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c b/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c index 84370562910f..bbf0c2e1c90f 100644 --- a/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c +++ b/drivers/gpu/drm/panel/panel-tpo-td043mtea1.c @@ -458,9 +458,7 @@ static int td043mtea1_probe(struct spi_device *spi) return ret; } - drm_panel_init(&lcd->panel); - lcd->panel.dev = &lcd->spi->dev; - lcd->panel.funcs = &td043mtea1_funcs; + drm_panel_init(&lcd->panel, &lcd->spi->dev, &td043mtea1_funcs); ret = drm_panel_add(&lcd->panel); if (ret < 0) { diff --git a/drivers/gpu/drm/panel/panel-tpo-tpg110.c b/drivers/gpu/drm/panel/panel-tpo-tpg110.c index 71591e5f5938..25524c26b241 100644 --- a/drivers/gpu/drm/panel/panel-tpo-tpg110.c +++ b/drivers/gpu/drm/panel/panel-tpo-tpg110.c @@ -457,9 +457,7 @@ static int tpg110_probe(struct spi_device *spi) if (ret) return ret; - drm_panel_init(&tpg->panel); - tpg->panel.dev = dev; - tpg->panel.funcs = &tpg110_drm_funcs; + drm_panel_init(&tpg->panel, dev, &tpg110_drm_funcs); spi_set_drvdata(spi, tpg); return drm_panel_add(&tpg->panel); diff --git a/drivers/gpu/drm/panel/panel-truly-nt35597.c b/drivers/gpu/drm/panel/panel-truly-nt35597.c index 77e1311b7c69..c3714be78837 100644 --- a/drivers/gpu/drm/panel/panel-truly-nt35597.c +++ b/drivers/gpu/drm/panel/panel-truly-nt35597.c @@ -518,9 +518,7 @@ static int truly_nt35597_panel_add(struct truly_nt35597 *ctx) /* dual port */ gpiod_set_value(ctx->mode_gpio, 0); - drm_panel_init(&ctx->panel); - ctx->panel.dev = dev; - ctx->panel.funcs = &truly_nt35597_drm_funcs; + drm_panel_init(&ctx->panel, dev, &truly_nt35597_drm_funcs); drm_panel_add(&ctx->panel); return 0; diff --git a/include/drm/drm_panel.h b/include/drm/drm_panel.h index 624bd15ecfab..4b9c656dc15e 100644 --- a/include/drm/drm_panel.h +++ b/include/drm/drm_panel.h @@ -147,7 +147,8 @@ struct drm_panel { struct list_head list; }; -void drm_panel_init(struct drm_panel *panel); +void drm_panel_init(struct drm_panel *panel, struct device *dev, + const struct drm_panel_funcs *funcs); int drm_panel_add(struct drm_panel *panel); void drm_panel_remove(struct drm_panel *panel); From d72cf01f410aa09868d98b672f3f92328c96b32d Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 21 Aug 2019 10:24:56 +0300 Subject: [PATCH 013/210] drm/mipi-dbi: fix a loop in debugfs code MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This code will likely crash if we try to do a zero byte write. The code looks like this: /* strip trailing whitespace */ for (i = count - 1; i > 0; i--) if (isspace(buf[i])) ... We're writing zero bytes so count = 0. You would think that "count - 1" would be negative one, but because "i" is unsigned it is a large positive numer instead. The "i > 0" condition is true and the "buf[i]" access will be out of bounds. The fix is to make "i" signed and now everything works as expected. The upper bound of "count" is capped in __kernel_write() at MAX_RW_COUNT so we don't have to worry about it being higher than INT_MAX. Fixes: 02dd95fe3169 ("drm/tinydrm: Add MIPI DBI support") Signed-off-by: Dan Carpenter [noralf: Adjust title] Signed-off-by: Noralf Trønnes Link: https://patchwork.freedesktop.org/patch/msgid/20190821072456.GJ26957@mwanda --- drivers/gpu/drm/drm_mipi_dbi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/drm_mipi_dbi.c b/drivers/gpu/drm/drm_mipi_dbi.c index 1961f713aaab..c4ee2709a6f3 100644 --- a/drivers/gpu/drm/drm_mipi_dbi.c +++ b/drivers/gpu/drm/drm_mipi_dbi.c @@ -1187,8 +1187,7 @@ static ssize_t mipi_dbi_debugfs_command_write(struct file *file, struct mipi_dbi_dev *dbidev = m->private; u8 val, cmd = 0, parameters[64]; char *buf, *pos, *token; - unsigned int i; - int ret, idx; + int i, ret, idx; if (!drm_dev_enter(&dbidev->drm, &idx)) return -ENODEV; From 15c665bb4637310bc8ce5f357b6a6e5a8aafc7c1 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Thu, 22 Aug 2019 23:15:18 +0200 Subject: [PATCH 014/210] drm/mcde: Fix an error handling path in 'mcde_probe()' If we don't find any matching components, we should go through the error handling path, in order to free some resources. Fixes: ca5be902a87d ("drm/mcde: Fix uninitialized variable") Signed-off-by: Christophe JAILLET Signed-off-by: Linus Walleij Link: https://patchwork.freedesktop.org/patch/msgid/20190822211518.5578-1-christophe.jaillet@wanadoo.fr --- drivers/gpu/drm/mcde/mcde_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/mcde/mcde_drv.c b/drivers/gpu/drm/mcde/mcde_drv.c index 982fe8485a61..0561fbd99df0 100644 --- a/drivers/gpu/drm/mcde/mcde_drv.c +++ b/drivers/gpu/drm/mcde/mcde_drv.c @@ -485,7 +485,8 @@ static int mcde_probe(struct platform_device *pdev) } if (!match) { dev_err(dev, "no matching components\n"); - return -ENODEV; + ret = -ENODEV; + goto clk_disable; } if (IS_ERR(match)) { dev_err(dev, "could not create component match\n"); From 3e93bc2a58aa241081e043ef9e6e86c42808499a Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 22 Aug 2019 12:26:14 +0200 Subject: [PATCH 015/210] drm/virtio: make resource id workaround runtime switchable. Also update the comment with a reference to the virglrenderer fix. Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20190822102614.18164-1-kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_object.c | 44 ++++++++++++++----------- 1 file changed, 24 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index b2da31310d24..e98aaa00578d 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -27,34 +27,38 @@ #include "virtgpu_drv.h" +static int virtio_gpu_virglrenderer_workaround = 1; +module_param_named(virglhack, virtio_gpu_virglrenderer_workaround, int, 0400); + static int virtio_gpu_resource_id_get(struct virtio_gpu_device *vgdev, uint32_t *resid) { -#if 0 - int handle = ida_alloc(&vgdev->resource_ida, GFP_KERNEL); - - if (handle < 0) - return handle; -#else - static int handle; - - /* - * FIXME: dirty hack to avoid re-using IDs, virglrenderer - * can't deal with that. Needs fixing in virglrenderer, also - * should figure a better way to handle that in the guest. - */ - handle++; -#endif - - *resid = handle + 1; + if (virtio_gpu_virglrenderer_workaround) { + /* + * Hack to avoid re-using resource IDs. + * + * virglrenderer versions up to (and including) 0.7.0 + * can't deal with that. virglrenderer commit + * "f91a9dd35715 Fix unlinking resources from hash + * table." (Feb 2019) fixes the bug. + */ + static int handle; + handle++; + *resid = handle + 1; + } else { + int handle = ida_alloc(&vgdev->resource_ida, GFP_KERNEL); + if (handle < 0) + return handle; + *resid = handle + 1; + } return 0; } static void virtio_gpu_resource_id_put(struct virtio_gpu_device *vgdev, uint32_t id) { -#if 0 - ida_free(&vgdev->resource_ida, id - 1); -#endif + if (!virtio_gpu_virglrenderer_workaround) { + ida_free(&vgdev->resource_ida, id - 1); + } } static void virtio_gpu_ttm_bo_destroy(struct ttm_buffer_object *tbo) From ae85b0df124f6928709f6707db55457f369bcb27 Mon Sep 17 00:00:00 2001 From: Dariusz Marcinkiewicz Date: Wed, 14 Aug 2019 12:44:59 +0200 Subject: [PATCH 016/210] drm_dp_cec: add connector info support. Pass the connector info to the CEC adapter. This makes it possible to associate the CEC adapter with the corresponding drm connector. Signed-off-by: Dariusz Marcinkiewicz Signed-off-by: Hans Verkuil Tested-by: Hans Verkuil Reviewed-by: Lyude Paul Reviewed-by: Ben Skeggs Signed-off-by: Hans Verkuil Link: https://patchwork.freedesktop.org/patch/msgid/20190814104520.6001-2-darekm@google.com --- .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 2 +- drivers/gpu/drm/drm_dp_cec.c | 25 ++++++++++++------- drivers/gpu/drm/i915/display/intel_dp.c | 4 +-- drivers/gpu/drm/nouveau/nouveau_connector.c | 3 +-- include/drm/drm_dp_helper.h | 17 ++++++------- 5 files changed, 27 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c index 16218a202b59..5ec14efd4d8c 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c @@ -416,7 +416,7 @@ void amdgpu_dm_initialize_dp_connector(struct amdgpu_display_manager *dm, drm_dp_aux_register(&aconnector->dm_dp_aux.aux); drm_dp_cec_register_connector(&aconnector->dm_dp_aux.aux, - aconnector->base.name, dm->adev->dev); + &aconnector->base); aconnector->mst_mgr.cbs = &dm_mst_cbs; drm_dp_mst_topology_mgr_init( &aconnector->mst_mgr, diff --git a/drivers/gpu/drm/drm_dp_cec.c b/drivers/gpu/drm/drm_dp_cec.c index b15cee85b702..b457c16c3a8b 100644 --- a/drivers/gpu/drm/drm_dp_cec.c +++ b/drivers/gpu/drm/drm_dp_cec.c @@ -8,7 +8,9 @@ #include #include #include +#include #include +#include #include /* @@ -295,7 +297,10 @@ static void drm_dp_cec_unregister_work(struct work_struct *work) */ void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid) { - u32 cec_caps = CEC_CAP_DEFAULTS | CEC_CAP_NEEDS_HPD; + struct drm_connector *connector = aux->cec.connector; + u32 cec_caps = CEC_CAP_DEFAULTS | CEC_CAP_NEEDS_HPD | + CEC_CAP_CONNECTOR_INFO; + struct cec_connector_info conn_info; unsigned int num_las = 1; u8 cap; @@ -344,13 +349,17 @@ void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid) /* Create a new adapter */ aux->cec.adap = cec_allocate_adapter(&drm_dp_cec_adap_ops, - aux, aux->cec.name, cec_caps, + aux, connector->name, cec_caps, num_las); if (IS_ERR(aux->cec.adap)) { aux->cec.adap = NULL; goto unlock; } - if (cec_register_adapter(aux->cec.adap, aux->cec.parent)) { + + cec_fill_conn_info_from_drm(&conn_info, connector); + cec_s_conn_info(aux->cec.adap, &conn_info); + + if (cec_register_adapter(aux->cec.adap, connector->dev->dev)) { cec_delete_adapter(aux->cec.adap); aux->cec.adap = NULL; } else { @@ -406,22 +415,20 @@ EXPORT_SYMBOL(drm_dp_cec_unset_edid); /** * drm_dp_cec_register_connector() - register a new connector * @aux: DisplayPort AUX channel - * @name: name of the CEC device - * @parent: parent device + * @connector: drm connector * * A new connector was registered with associated CEC adapter name and * CEC adapter parent device. After registering the name and parent * drm_dp_cec_set_edid() is called to check if the connector supports * CEC and to register a CEC adapter if that is the case. */ -void drm_dp_cec_register_connector(struct drm_dp_aux *aux, const char *name, - struct device *parent) +void drm_dp_cec_register_connector(struct drm_dp_aux *aux, + struct drm_connector *connector) { WARN_ON(aux->cec.adap); if (WARN_ON(!aux->transfer)) return; - aux->cec.name = name; - aux->cec.parent = parent; + aux->cec.connector = connector; INIT_DELAYED_WORK(&aux->cec.unregister_work, drm_dp_cec_unregister_work); } diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c index 4336df46fe78..79c8afdbc486 100644 --- a/drivers/gpu/drm/i915/display/intel_dp.c +++ b/drivers/gpu/drm/i915/display/intel_dp.c @@ -5693,7 +5693,6 @@ static int intel_dp_connector_register(struct drm_connector *connector) { struct intel_dp *intel_dp = intel_attached_dp(connector); - struct drm_device *dev = connector->dev; int ret; ret = intel_connector_register(connector); @@ -5708,8 +5707,7 @@ intel_dp_connector_register(struct drm_connector *connector) intel_dp->aux.dev = connector->kdev; ret = drm_dp_aux_register(&intel_dp->aux); if (!ret) - drm_dp_cec_register_connector(&intel_dp->aux, - connector->name, dev->dev); + drm_dp_cec_register_connector(&intel_dp->aux, connector); return ret; } diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c index 330d7d29a6e3..8aa703347eb5 100644 --- a/drivers/gpu/drm/nouveau/nouveau_connector.c +++ b/drivers/gpu/drm/nouveau/nouveau_connector.c @@ -1416,8 +1416,7 @@ nouveau_connector_create(struct drm_device *dev, switch (type) { case DRM_MODE_CONNECTOR_DisplayPort: case DRM_MODE_CONNECTOR_eDP: - drm_dp_cec_register_connector(&nv_connector->aux, - connector->name, dev->dev); + drm_dp_cec_register_connector(&nv_connector->aux, connector); break; } diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h index 8364502f92cf..7972b925a952 100644 --- a/include/drm/drm_dp_helper.h +++ b/include/drm/drm_dp_helper.h @@ -1230,20 +1230,19 @@ struct drm_dp_aux_msg { struct cec_adapter; struct edid; +struct drm_connector; /** * struct drm_dp_aux_cec - DisplayPort CEC-Tunneling-over-AUX * @lock: mutex protecting this struct * @adap: the CEC adapter for CEC-Tunneling-over-AUX support. - * @name: name of the CEC adapter - * @parent: parent device of the CEC adapter + * @connector: the connector this CEC adapter is associated with * @unregister_work: unregister the CEC adapter */ struct drm_dp_aux_cec { struct mutex lock; struct cec_adapter *adap; - const char *name; - struct device *parent; + struct drm_connector *connector; struct delayed_work unregister_work; }; @@ -1451,8 +1450,8 @@ drm_dp_has_quirk(const struct drm_dp_desc *desc, enum drm_dp_quirk quirk) #ifdef CONFIG_DRM_DP_CEC void drm_dp_cec_irq(struct drm_dp_aux *aux); -void drm_dp_cec_register_connector(struct drm_dp_aux *aux, const char *name, - struct device *parent); +void drm_dp_cec_register_connector(struct drm_dp_aux *aux, + struct drm_connector *connector); void drm_dp_cec_unregister_connector(struct drm_dp_aux *aux); void drm_dp_cec_set_edid(struct drm_dp_aux *aux, const struct edid *edid); void drm_dp_cec_unset_edid(struct drm_dp_aux *aux); @@ -1461,9 +1460,9 @@ static inline void drm_dp_cec_irq(struct drm_dp_aux *aux) { } -static inline void drm_dp_cec_register_connector(struct drm_dp_aux *aux, - const char *name, - struct device *parent) +static inline void +drm_dp_cec_register_connector(struct drm_dp_aux *aux, + struct drm_connector *connector) { } From 5558f3d535c54e5ca39df7896022b103360a9ab1 Mon Sep 17 00:00:00 2001 From: Dariusz Marcinkiewicz Date: Wed, 14 Aug 2019 12:45:00 +0200 Subject: [PATCH 017/210] drm/i915/intel_hdmi: use cec_notifier_conn_(un)register MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Use the new cec_notifier_conn_(un)register() functions to (un)register the notifier for the HDMI connector, and fill in the cec_connector_info. Signed-off-by: Dariusz Marcinkiewicz Signed-off-by: Hans Verkuil Tested-by: Hans Verkuil Reviewed-by: Ville Syrjälä Signed-off-by: Hans Verkuil Link: https://patchwork.freedesktop.org/patch/msgid/20190814104520.6001-3-darekm@google.com --- drivers/gpu/drm/i915/display/intel_hdmi.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c index 0ebec69bbbfc..ea003e17d2d0 100644 --- a/drivers/gpu/drm/i915/display/intel_hdmi.c +++ b/drivers/gpu/drm/i915/display/intel_hdmi.c @@ -2752,8 +2752,9 @@ intel_hdmi_connector_register(struct drm_connector *connector) static void intel_hdmi_destroy(struct drm_connector *connector) { - if (intel_attached_hdmi(connector)->cec_notifier) - cec_notifier_put(intel_attached_hdmi(connector)->cec_notifier); + struct cec_notifier *n = intel_attached_hdmi(connector)->cec_notifier; + + cec_notifier_conn_unregister(n); intel_connector_destroy(connector); } @@ -3085,6 +3086,7 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, struct drm_device *dev = intel_encoder->base.dev; struct drm_i915_private *dev_priv = to_i915(dev); enum port port = intel_encoder->port; + struct cec_connector_info conn_info; DRM_DEBUG_KMS("Adding HDMI connector on port %c\n", port_name(port)); @@ -3137,8 +3139,11 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd); } - intel_hdmi->cec_notifier = cec_notifier_get_conn(dev->dev, - port_identifier(port)); + cec_fill_conn_info_from_drm(&conn_info, connector); + + intel_hdmi->cec_notifier = + cec_notifier_conn_register(dev->dev, port_identifier(port), + &conn_info); if (!intel_hdmi->cec_notifier) DRM_DEBUG_KMS("CEC notifier get failed\n"); } From 66c2dee4ae10a2d841c40b9dd9c7141eb23eee76 Mon Sep 17 00:00:00 2001 From: Dariusz Marcinkiewicz Date: Fri, 23 Aug 2019 13:24:25 +0200 Subject: [PATCH 018/210] drm/vc4/vc4_hdmi: fill in connector info Fill in the connector info, allowing userspace to associate the CEC device with the drm connector. Tested on a Raspberry Pi 3B. Signed-off-by: Dariusz Marcinkiewicz Signed-off-by: Hans Verkuil Tested-by: Hans Verkuil Acked-by: Eric Anholt Link: https://patchwork.freedesktop.org/patch/msgid/20190823112427.42394-2-hverkuil-cisco@xs4all.nl --- drivers/gpu/drm/vc4/vc4_hdmi.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c index ee7d4e7b0ee3..0853b980bcb3 100644 --- a/drivers/gpu/drm/vc4/vc4_hdmi.c +++ b/drivers/gpu/drm/vc4/vc4_hdmi.c @@ -1285,6 +1285,9 @@ static const struct cec_adap_ops vc4_hdmi_cec_adap_ops = { static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) { +#ifdef CONFIG_DRM_VC4_HDMI_CEC + struct cec_connector_info conn_info; +#endif struct platform_device *pdev = to_platform_device(dev); struct drm_device *drm = dev_get_drvdata(master); struct vc4_dev *vc4 = drm->dev_private; @@ -1403,13 +1406,15 @@ static int vc4_hdmi_bind(struct device *dev, struct device *master, void *data) #ifdef CONFIG_DRM_VC4_HDMI_CEC hdmi->cec_adap = cec_allocate_adapter(&vc4_hdmi_cec_adap_ops, vc4, "vc4", - CEC_CAP_TRANSMIT | - CEC_CAP_LOG_ADDRS | - CEC_CAP_PASSTHROUGH | - CEC_CAP_RC, 1); + CEC_CAP_DEFAULTS | + CEC_CAP_CONNECTOR_INFO, 1); ret = PTR_ERR_OR_ZERO(hdmi->cec_adap); if (ret < 0) goto err_destroy_conn; + + cec_fill_conn_info_from_drm(&conn_info, hdmi->connector); + cec_s_conn_info(hdmi->cec_adap, &conn_info); + HDMI_WRITE(VC4_HDMI_CPU_MASK_SET, 0xffffffff); value = HDMI_READ(VC4_HDMI_CEC_CNTRL_1); value &= ~VC4_HDMI_CEC_DIV_CLK_CNT_MASK; From a02c4c25b9fa69ddf29368f454c45fa1f5a8217d Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Thu, 22 Aug 2019 11:46:57 +0200 Subject: [PATCH 019/210] drm/virtio: add plane check Use drm_atomic_helper_check_plane_state() to sanity check the plane state. Signed-off-by: Gerd Hoffmann Acked-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20190822094657.27483-1-kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_plane.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_plane.c b/drivers/gpu/drm/virtio/virtgpu_plane.c index a492ac3f4a7e..fe5efb2de90d 100644 --- a/drivers/gpu/drm/virtio/virtgpu_plane.c +++ b/drivers/gpu/drm/virtio/virtgpu_plane.c @@ -84,7 +84,22 @@ static const struct drm_plane_funcs virtio_gpu_plane_funcs = { static int virtio_gpu_plane_atomic_check(struct drm_plane *plane, struct drm_plane_state *state) { - return 0; + bool is_cursor = plane->type == DRM_PLANE_TYPE_CURSOR; + struct drm_crtc_state *crtc_state; + int ret; + + if (!state->fb || !state->crtc) + return 0; + + crtc_state = drm_atomic_get_crtc_state(state->state, state->crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + ret = drm_atomic_helper_check_plane_state(state, crtc_state, + DRM_PLANE_HELPER_NO_SCALING, + DRM_PLANE_HELPER_NO_SCALING, + is_cursor, true); + return ret; } static void virtio_gpu_primary_plane_update(struct drm_plane *plane, From 4100a7b834389e91638a0b789399fd7b31e258c1 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 13 Aug 2019 10:25:08 +0200 Subject: [PATCH 020/210] drm/virtio: cleanup queue functions Make the queue functions return void, none of the call sites checks the return value. Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20190813082509.29324-2-kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_vq.c | 41 ++++++++++------------------- 1 file changed, 14 insertions(+), 27 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 7ac20490e1b4..ca91e83ffaef 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -252,8 +252,8 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *work) wake_up(&vgdev->cursorq.ack_queue); } -static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf) +static void virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf) __releases(&vgdev->ctrlq.qlock) __acquires(&vgdev->ctrlq.qlock) { @@ -263,7 +263,7 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, int ret; if (!vgdev->vqs_ready) - return -ENODEV; + return; sg_init_one(&vcmd, vbuf->buf, vbuf->size); sgs[outcnt + incnt] = &vcmd; @@ -294,30 +294,22 @@ retry: virtqueue_kick(vq); } - - if (!ret) - ret = vq->num_free; - return ret; } -static int virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf) +static void virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf) { - int rc; - spin_lock(&vgdev->ctrlq.qlock); - rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); + virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); spin_unlock(&vgdev->ctrlq.qlock); - return rc; } -static int virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf, - struct virtio_gpu_ctrl_hdr *hdr, - struct virtio_gpu_fence *fence) +static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf, + struct virtio_gpu_ctrl_hdr *hdr, + struct virtio_gpu_fence *fence) { struct virtqueue *vq = vgdev->ctrlq.vq; - int rc; again: spin_lock(&vgdev->ctrlq.qlock); @@ -338,13 +330,12 @@ again: if (fence) virtio_gpu_fence_emit(vgdev, hdr, fence); - rc = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); + virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); spin_unlock(&vgdev->ctrlq.qlock); - return rc; } -static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, - struct virtio_gpu_vbuffer *vbuf) +static void virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, + struct virtio_gpu_vbuffer *vbuf) { struct virtqueue *vq = vgdev->cursorq.vq; struct scatterlist *sgs[1], ccmd; @@ -352,7 +343,7 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, int outcnt; if (!vgdev->vqs_ready) - return -ENODEV; + return; sg_init_one(&ccmd, vbuf->buf, vbuf->size); sgs[0] = &ccmd; @@ -374,10 +365,6 @@ retry: } spin_unlock(&vgdev->cursorq.qlock); - - if (!ret) - ret = vq->num_free; - return ret; } /* just create gem objects for userspace and long lived objects, From 744583ecc3d7c5e27d48ff74e575b893637f4b57 Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Tue, 13 Aug 2019 10:25:09 +0200 Subject: [PATCH 021/210] drm/virtio: notify virtqueues without holding spinlock Split virtqueue_kick() call into virtqueue_kick_prepare(), which requires serialization, and virtqueue_notify(), which does not. Move the virtqueue_notify() call out of the critical section protected by the queue lock. This avoids triggering a vmexit while holding the lock and thereby fixes a rather bad spinlock contention. Suggested-by: Chia-I Wu Signed-off-by: Gerd Hoffmann Reviewed-by: Chia-I Wu Link: http://patchwork.freedesktop.org/patch/msgid/20190813082509.29324-3-kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_vq.c | 25 +++++++++++++++++++------ 1 file changed, 19 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index ca91e83ffaef..e41c96143342 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -252,7 +252,7 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *work) wake_up(&vgdev->cursorq.ack_queue); } -static void virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, +static bool virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, struct virtio_gpu_vbuffer *vbuf) __releases(&vgdev->ctrlq.qlock) __acquires(&vgdev->ctrlq.qlock) @@ -260,10 +260,11 @@ static void virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, struct virtqueue *vq = vgdev->ctrlq.vq; struct scatterlist *sgs[3], vcmd, vout, vresp; int outcnt = 0, incnt = 0; + bool notify = false; int ret; if (!vgdev->vqs_ready) - return; + return notify; sg_init_one(&vcmd, vbuf->buf, vbuf->size); sgs[outcnt + incnt] = &vcmd; @@ -292,16 +293,21 @@ retry: trace_virtio_gpu_cmd_queue(vq, (struct virtio_gpu_ctrl_hdr *)vbuf->buf); - virtqueue_kick(vq); + notify = virtqueue_kick_prepare(vq); } + return notify; } static void virtio_gpu_queue_ctrl_buffer(struct virtio_gpu_device *vgdev, struct virtio_gpu_vbuffer *vbuf) { + bool notify; + spin_lock(&vgdev->ctrlq.qlock); - virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); + notify = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); spin_unlock(&vgdev->ctrlq.qlock); + if (notify) + virtqueue_notify(vgdev->ctrlq.vq); } static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev, @@ -310,6 +316,7 @@ static void virtio_gpu_queue_fenced_ctrl_buffer(struct virtio_gpu_device *vgdev, struct virtio_gpu_fence *fence) { struct virtqueue *vq = vgdev->ctrlq.vq; + bool notify; again: spin_lock(&vgdev->ctrlq.qlock); @@ -330,8 +337,10 @@ again: if (fence) virtio_gpu_fence_emit(vgdev, hdr, fence); - virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); + notify = virtio_gpu_queue_ctrl_buffer_locked(vgdev, vbuf); spin_unlock(&vgdev->ctrlq.qlock); + if (notify) + virtqueue_notify(vgdev->ctrlq.vq); } static void virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, @@ -339,6 +348,7 @@ static void virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev, { struct virtqueue *vq = vgdev->cursorq.vq; struct scatterlist *sgs[1], ccmd; + bool notify; int ret; int outcnt; @@ -361,10 +371,13 @@ retry: trace_virtio_gpu_cmd_queue(vq, (struct virtio_gpu_ctrl_hdr *)vbuf->buf); - virtqueue_kick(vq); + notify = virtqueue_kick_prepare(vq); } spin_unlock(&vgdev->cursorq.qlock); + + if (notify) + virtqueue_notify(vq); } /* just create gem objects for userspace and long lived objects, From b0138364da17617db052c4a738b58bf45e42f500 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Wed, 28 Aug 2019 18:55:16 +1000 Subject: [PATCH 022/210] drm/virtio: module_param_named() requires linux/moduleparam.h Fixes: 3e93bc2a58aa ("drm/virtio: make resource id workaround runtime switchable.") Signed-off-by: Stephen Rothwell Link: http://patchwork.freedesktop.org/patch/msgid/20190828185516.22b03da8@canb.auug.org.au Signed-off-by: Gerd Hoffmann --- drivers/gpu/drm/virtio/virtgpu_object.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/virtio/virtgpu_object.c b/drivers/gpu/drm/virtio/virtgpu_object.c index e98aaa00578d..ab33b65167f6 100644 --- a/drivers/gpu/drm/virtio/virtgpu_object.c +++ b/drivers/gpu/drm/virtio/virtgpu_object.c @@ -23,6 +23,8 @@ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +#include + #include #include "virtgpu_drv.h" From 1374b8375c2efb75da8c8ac2638a91c11313262e Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Tue, 27 Aug 2019 11:58:24 +0200 Subject: [PATCH 023/210] drm/meson: dw_hdmi: add resume/suspend hooks Add the suspend and resume hooks to: - reset the whole HDMI glue and HDMI controller on suspend - re-init the HDMI glue and HDMI controller on resume The HDMI glue init is refactored to be re-used from the resume hook. It makes usage of dw_hdmi_resume() to recover a functionnal DDC bus. Signed-off-by: Neil Armstrong Acked-by: Daniel Vetter Tested-by: Kevin Hilman [narmstrong: fixed typo in commit log, and rebased on drm-misc-next] Link: https://patchwork.freedesktop.org/patch/msgid/20190827095825.21015-2-narmstrong@baylibre.com --- drivers/gpu/drm/meson/meson_dw_hdmi.c | 110 ++++++++++++++++++-------- 1 file changed, 76 insertions(+), 34 deletions(-) diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c index 68bbd987147b..022286dc6ab2 100644 --- a/drivers/gpu/drm/meson/meson_dw_hdmi.c +++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c @@ -802,6 +802,47 @@ static bool meson_hdmi_connector_is_available(struct device *dev) return false; } +static void meson_dw_hdmi_init(struct meson_dw_hdmi *meson_dw_hdmi) +{ + struct meson_drm *priv = meson_dw_hdmi->priv; + + /* Enable clocks */ + regmap_update_bits(priv->hhi, HHI_HDMI_CLK_CNTL, 0xffff, 0x100); + + /* Bring HDMITX MEM output of power down */ + regmap_update_bits(priv->hhi, HHI_MEM_PD_REG0, 0xff << 8, 0); + + /* Reset HDMITX APB & TX & PHY */ + reset_control_reset(meson_dw_hdmi->hdmitx_apb); + reset_control_reset(meson_dw_hdmi->hdmitx_ctrl); + reset_control_reset(meson_dw_hdmi->hdmitx_phy); + + /* Enable APB3 fail on error */ + if (!meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) { + writel_bits_relaxed(BIT(15), BIT(15), + meson_dw_hdmi->hdmitx + HDMITX_TOP_CTRL_REG); + writel_bits_relaxed(BIT(15), BIT(15), + meson_dw_hdmi->hdmitx + HDMITX_DWC_CTRL_REG); + } + + /* Bring out of reset */ + meson_dw_hdmi->data->top_write(meson_dw_hdmi, + HDMITX_TOP_SW_RESET, 0); + + msleep(20); + + meson_dw_hdmi->data->top_write(meson_dw_hdmi, + HDMITX_TOP_CLK_CNTL, 0xff); + + /* Enable HDMI-TX Interrupt */ + meson_dw_hdmi->data->top_write(meson_dw_hdmi, HDMITX_TOP_INTR_STAT_CLR, + HDMITX_TOP_INTR_CORE); + + meson_dw_hdmi->data->top_write(meson_dw_hdmi, HDMITX_TOP_INTR_MASKN, + HDMITX_TOP_INTR_CORE); + +} + static int meson_dw_hdmi_bind(struct device *dev, struct device *master, void *data) { @@ -925,40 +966,7 @@ static int meson_dw_hdmi_bind(struct device *dev, struct device *master, DRM_DEBUG_DRIVER("encoder initialized\n"); - /* Enable clocks */ - regmap_update_bits(priv->hhi, HHI_HDMI_CLK_CNTL, 0xffff, 0x100); - - /* Bring HDMITX MEM output of power down */ - regmap_update_bits(priv->hhi, HHI_MEM_PD_REG0, 0xff << 8, 0); - - /* Reset HDMITX APB & TX & PHY */ - reset_control_reset(meson_dw_hdmi->hdmitx_apb); - reset_control_reset(meson_dw_hdmi->hdmitx_ctrl); - reset_control_reset(meson_dw_hdmi->hdmitx_phy); - - /* Enable APB3 fail on error */ - if (!meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) { - writel_bits_relaxed(BIT(15), BIT(15), - meson_dw_hdmi->hdmitx + HDMITX_TOP_CTRL_REG); - writel_bits_relaxed(BIT(15), BIT(15), - meson_dw_hdmi->hdmitx + HDMITX_DWC_CTRL_REG); - } - - /* Bring out of reset */ - meson_dw_hdmi->data->top_write(meson_dw_hdmi, - HDMITX_TOP_SW_RESET, 0); - - msleep(20); - - meson_dw_hdmi->data->top_write(meson_dw_hdmi, - HDMITX_TOP_CLK_CNTL, 0xff); - - /* Enable HDMI-TX Interrupt */ - meson_dw_hdmi->data->top_write(meson_dw_hdmi, HDMITX_TOP_INTR_STAT_CLR, - HDMITX_TOP_INTR_CORE); - - meson_dw_hdmi->data->top_write(meson_dw_hdmi, HDMITX_TOP_INTR_MASKN, - HDMITX_TOP_INTR_CORE); + meson_dw_hdmi_init(meson_dw_hdmi); /* Bridge / Connector */ @@ -994,6 +1002,34 @@ static const struct component_ops meson_dw_hdmi_ops = { .unbind = meson_dw_hdmi_unbind, }; +static int __maybe_unused meson_dw_hdmi_pm_suspend(struct device *dev) +{ + struct meson_dw_hdmi *meson_dw_hdmi = dev_get_drvdata(dev); + + if (!meson_dw_hdmi) + return 0; + + /* Reset TOP */ + meson_dw_hdmi->data->top_write(meson_dw_hdmi, + HDMITX_TOP_SW_RESET, 0); + + return 0; +} + +static int __maybe_unused meson_dw_hdmi_pm_resume(struct device *dev) +{ + struct meson_dw_hdmi *meson_dw_hdmi = dev_get_drvdata(dev); + + if (!meson_dw_hdmi) + return 0; + + meson_dw_hdmi_init(meson_dw_hdmi); + + dw_hdmi_resume(meson_dw_hdmi->hdmi); + + return 0; +} + static int meson_dw_hdmi_probe(struct platform_device *pdev) { return component_add(&pdev->dev, &meson_dw_hdmi_ops); @@ -1006,6 +1042,11 @@ static int meson_dw_hdmi_remove(struct platform_device *pdev) return 0; } +static const struct dev_pm_ops meson_dw_hdmi_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(meson_dw_hdmi_pm_suspend, + meson_dw_hdmi_pm_resume) +}; + static const struct of_device_id meson_dw_hdmi_of_table[] = { { .compatible = "amlogic,meson-gxbb-dw-hdmi", .data = &meson_dw_hdmi_gx_data }, @@ -1025,6 +1066,7 @@ static struct platform_driver meson_dw_hdmi_platform_driver = { .driver = { .name = DRIVER_NAME, .of_match_table = meson_dw_hdmi_of_table, + .pm = &meson_dw_hdmi_pm_ops, }, }; module_platform_driver(meson_dw_hdmi_platform_driver); From cf3d4e534711059f77884697dc93b97d60a4ed9f Mon Sep 17 00:00:00 2001 From: Neil Armstrong Date: Tue, 27 Aug 2019 11:58:25 +0200 Subject: [PATCH 024/210] drm/meson: add resume/suspend hooks Add the suspend and resume hooks to: - save and disable the entire DRM driver on suspend - re-init the entire VPU subsystem on resume, to recover CRTC and pixel generator functionnal usage after DDR suspend, then recover DRM driver state Signed-off-by: Neil Armstrong Acked-by: Daniel Vetter Tested-by: Kevin Hilman Link: https://patchwork.freedesktop.org/patch/msgid/20190827095825.21015-3-narmstrong@baylibre.com --- drivers/gpu/drm/meson/meson_drv.c | 32 +++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/gpu/drm/meson/meson_drv.c b/drivers/gpu/drm/meson/meson_drv.c index a24f8dec5adc..397c33182f4f 100644 --- a/drivers/gpu/drm/meson/meson_drv.c +++ b/drivers/gpu/drm/meson/meson_drv.c @@ -372,6 +372,33 @@ static const struct component_master_ops meson_drv_master_ops = { .unbind = meson_drv_unbind, }; +static int __maybe_unused meson_drv_pm_suspend(struct device *dev) +{ + struct meson_drm *priv = dev_get_drvdata(dev); + + if (!priv) + return 0; + + return drm_mode_config_helper_suspend(priv->drm); +} + +static int __maybe_unused meson_drv_pm_resume(struct device *dev) +{ + struct meson_drm *priv = dev_get_drvdata(dev); + + if (!priv) + return 0; + + meson_vpu_init(priv); + meson_venc_init(priv); + meson_vpp_init(priv); + meson_viu_init(priv); + + drm_mode_config_helper_resume(priv->drm); + + return 0; +} + static int compare_of(struct device *dev, void *data) { DRM_DEBUG_DRIVER("Comparing of node %pOF with %pOF\n", @@ -467,11 +494,16 @@ static const struct of_device_id dt_match[] = { }; MODULE_DEVICE_TABLE(of, dt_match); +static const struct dev_pm_ops meson_drv_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(meson_drv_pm_suspend, meson_drv_pm_resume) +}; + static struct platform_driver meson_drm_platform_driver = { .probe = meson_drv_probe, .driver = { .name = "meson-drm", .of_match_table = dt_match, + .pm = &meson_drv_pm_ops, }, }; From ee68c743f8d0747585b4c0c171c039d6635bda7c Mon Sep 17 00:00:00 2001 From: Boris Brezillon Date: Mon, 26 Aug 2019 17:26:29 +0200 Subject: [PATCH 025/210] drm: Stop including drm_bridge.h from drm_crtc.h We are about to add a drm_bridge_state that inherits from drm_private_state which is defined in drm_atomic.h. Problem is, drm_atomic.h includes drm_crtc.h which in turn includes drm_bridge.h, leading to "drm_private_state has incomplete type" error. Let's force all users of the drm_bridge API to explicitly include drm_bridge.h. Signed-off-by: Boris Brezillon Reviewed-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20190826152649.13820-2-boris.brezillon@collabora.com --- drivers/gpu/drm/arc/arcpgu_hdmi.c | 1 + drivers/gpu/drm/bridge/analogix-anx78xx.c | 1 + drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 1 + drivers/gpu/drm/bridge/dumb-vga-dac.c | 1 + drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 1 + drivers/gpu/drm/bridge/nxp-ptn3460.c | 1 + drivers/gpu/drm/bridge/panel.c | 1 + drivers/gpu/drm/bridge/parade-ps8622.c | 1 + drivers/gpu/drm/bridge/sii902x.c | 1 + drivers/gpu/drm/bridge/sii9234.c | 1 + drivers/gpu/drm/bridge/sil-sii8620.c | 1 + drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 1 + drivers/gpu/drm/bridge/tc358764.c | 1 + drivers/gpu/drm/bridge/tc358767.c | 1 + drivers/gpu/drm/bridge/ti-sn65dsi86.c | 1 + drivers/gpu/drm/bridge/ti-tfp410.c | 1 + drivers/gpu/drm/drm_atomic_helper.c | 1 + drivers/gpu/drm/drm_crtc_helper.c | 1 + drivers/gpu/drm/drm_encoder.c | 1 + drivers/gpu/drm/drm_probe_helper.c | 1 + drivers/gpu/drm/drm_simple_kms_helper.c | 1 + drivers/gpu/drm/exynos/exynos_dp.c | 1 + drivers/gpu/drm/exynos/exynos_drm_dsi.c | 1 + drivers/gpu/drm/exynos/exynos_drm_mic.c | 1 + drivers/gpu/drm/exynos/exynos_hdmi.c | 1 + drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 1 + drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c | 1 + drivers/gpu/drm/i2c/tda998x_drv.c | 1 + drivers/gpu/drm/imx/imx-ldb.c | 1 + drivers/gpu/drm/imx/parallel-display.c | 1 + drivers/gpu/drm/ingenic/ingenic-drm.c | 1 + drivers/gpu/drm/mediatek/mtk_dpi.c | 1 + drivers/gpu/drm/mediatek/mtk_dsi.c | 1 + drivers/gpu/drm/mediatek/mtk_hdmi.c | 1 + drivers/gpu/drm/msm/dsi/dsi.h | 1 + drivers/gpu/drm/msm/edp/edp.h | 1 + drivers/gpu/drm/msm/hdmi/hdmi.h | 2 ++ drivers/gpu/drm/omapdrm/dss/output.c | 1 + drivers/gpu/drm/omapdrm/omap_drv.c | 1 + drivers/gpu/drm/omapdrm/omap_encoder.c | 1 + drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 1 + drivers/gpu/drm/rockchip/rockchip_lvds.c | 1 + drivers/gpu/drm/rockchip/rockchip_rgb.c | 1 + drivers/gpu/drm/sti/sti_dvo.c | 1 + drivers/gpu/drm/sti/sti_hda.c | 1 + drivers/gpu/drm/sti/sti_hdmi.c | 1 + drivers/gpu/drm/sun4i/sun4i_lvds.c | 1 + drivers/gpu/drm/sun4i/sun4i_rgb.c | 1 + drivers/gpu/drm/sun4i/sun4i_tcon.c | 1 + drivers/gpu/drm/tilcdc/tilcdc_external.c | 1 + drivers/gpu/drm/vc4/vc4_dsi.c | 1 + include/drm/drm_crtc.h | 1 - 52 files changed, 52 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/arc/arcpgu_hdmi.c b/drivers/gpu/drm/arc/arcpgu_hdmi.c index 98aac743cc26..8fd7094beece 100644 --- a/drivers/gpu/drm/arc/arcpgu_hdmi.c +++ b/drivers/gpu/drm/arc/arcpgu_hdmi.c @@ -5,6 +5,7 @@ * Copyright (C) 2016 Synopsys, Inc. (www.synopsys.com) */ +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/analogix-anx78xx.c b/drivers/gpu/drm/bridge/analogix-anx78xx.c index 3c7cc5af735c..e3f4fd2a5ad4 100644 --- a/drivers/gpu/drm/bridge/analogix-anx78xx.c +++ b/drivers/gpu/drm/bridge/analogix-anx78xx.c @@ -19,6 +19,7 @@ #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 22885dceaa17..bb411fe52ae8 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/dumb-vga-dac.c b/drivers/gpu/drm/bridge/dumb-vga-dac.c index 7aa789c35882..cc33dc411b9e 100644 --- a/drivers/gpu/drm/bridge/dumb-vga-dac.c +++ b/drivers/gpu/drm/bridge/dumb-vga-dac.c @@ -12,6 +12,7 @@ #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c index 6e81e5db57f2..e8a49f6146c6 100644 --- a/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c +++ b/drivers/gpu/drm/bridge/megachips-stdpxxxx-ge-b850v3-fw.c @@ -25,6 +25,7 @@ #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/nxp-ptn3460.c b/drivers/gpu/drm/bridge/nxp-ptn3460.c index d4a1cc5052c3..57ff01339559 100644 --- a/drivers/gpu/drm/bridge/nxp-ptn3460.c +++ b/drivers/gpu/drm/bridge/nxp-ptn3460.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/panel.c b/drivers/gpu/drm/bridge/panel.c index b12ae3a4c5f1..6cffeb4a42f2 100644 --- a/drivers/gpu/drm/bridge/panel.c +++ b/drivers/gpu/drm/bridge/panel.c @@ -5,6 +5,7 @@ */ #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/parade-ps8622.c b/drivers/gpu/drm/bridge/parade-ps8622.c index 93c68e2e9484..b7a72dfdcac3 100644 --- a/drivers/gpu/drm/bridge/parade-ps8622.c +++ b/drivers/gpu/drm/bridge/parade-ps8622.c @@ -17,6 +17,7 @@ #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/sii902x.c b/drivers/gpu/drm/bridge/sii902x.c index 38f75ac580df..b70e8c5cf2e1 100644 --- a/drivers/gpu/drm/bridge/sii902x.c +++ b/drivers/gpu/drm/bridge/sii902x.c @@ -20,6 +20,7 @@ #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/sii9234.c b/drivers/gpu/drm/bridge/sii9234.c index 25d4ad8c7ad6..ad00d841ed9e 100644 --- a/drivers/gpu/drm/bridge/sii9234.c +++ b/drivers/gpu/drm/bridge/sii9234.c @@ -13,6 +13,7 @@ * Dharam Kumar */ #include +#include #include #include diff --git a/drivers/gpu/drm/bridge/sil-sii8620.c b/drivers/gpu/drm/bridge/sil-sii8620.c index bd3165ee5354..14643923a721 100644 --- a/drivers/gpu/drm/bridge/sil-sii8620.c +++ b/drivers/gpu/drm/bridge/sil-sii8620.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index 355877f0ad7a..bd65d0479683 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -26,6 +26,7 @@ #include #include +#include #include #include #include diff --git a/drivers/gpu/drm/bridge/tc358764.c b/drivers/gpu/drm/bridge/tc358764.c index 170f162ffa55..db298f550a5a 100644 --- a/drivers/gpu/drm/bridge/tc358764.c +++ b/drivers/gpu/drm/bridge/tc358764.c @@ -16,6 +16,7 @@ #include